Lecture 05. The Equipartition Theorum.

uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 05. Thermodynamics and Chemical Dynamics -- The Equipartition Theorum -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:02:34 In Real Molecules... 0:05:51 Constant Volume Heat Capacity 0:11:37 The Equipartition Theorem 0:39:40 The Translational Energy of a Classical Gas Molecules

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Reginald Penner

type: Person

de: Chemie

fi: kemia

uk: Хімія

en: Chemistry

fr: Chimie

da: Kemi

es: Química

nl: Scheikunde

de: Mathematik, Naturwissenschaften

uk: Математика, природничі науки

en: Mathematics, Natural Sciences

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 06. Thermodynamics and Chemical Dynamics -- The Rotational Partition Function -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:02:51 Monoatomic Gas in One Dimension 0:11:51 Manifold of Rotational State 0:19:43 What's a Symmetry Number?

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name: Lecture 06. The Rotational Partition Function.

University of California Irvine (UCI)

addressCountry: US

addressLocality: Irvine

addressRegion: California

type: Organization

cs: Video

de: Video

fi: Video

uk: Відео

en: Video

fr: Vidéo

da: Video

nl: Video

es: Video


uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 07. Thermodynamics and Chemical Dynamics -- Vibrational Partition Functions -- Instructor: Reginald Penner, Ph.D. In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:00:41 The Symmetry Number 0:07:09 Aluminum Chloride Atoms 0:13:03 Example: Benzene 0:15:43 Rotational Partition Function of HCl 0:19:12 Rotational Partition Function of Methane 0:22:02 Vibrational States 0:33:24 What About Vibrational Energy? 0:36:13 Vibrational Modes

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name: Lecture 07. Vibrational Partition Functions.


Lecture 08. The First Law.

uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 08. Thermodynamics and Chemical Dynamics -- The First Law -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:00:58 Chlorine Dioxide 0:09:40 Thermodynamics 0:11:39 Energy 0:15:30 Three Flavors of Systems 0:18:15 Closed Systems 0:20:23 Work 0:36:52 Reversible Processes 0:44:37 Sign Convention 0:46:27 Heat

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Lecture 10. Jim Joule.

uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 10. Thermodynamics and Chemical Dynamics -- Jim Joule -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:04:13 Adiabatic Processes 0:18:24 Equivalence of Work and Heat 0:22:58 Joule's Other Experiment 0:28:43 The Compressibility Factor 0:31:00 Thought Experiment 0:36:40 The Joule-Thompson Effect 0:45:13 Isenthalps 0:47:13 The Linde Refrigerator

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Lecture 11. Midterm I Review.

uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 11. Thermodynamics and Chemical Dynamics -- Midterm I Review -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:00:52 Partition Functions 0:06:32 Vibrational Modes 0:12:06 The Equipartition Theorem 0:13:33 Heat Capacity 0:17:45 Classical Hamiltonian 0:18:12 Predictions of the Equipartition Theorem

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Lecture 12. Entropy and The Second Law.

uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 12. Thermodynamics and Chemical Dynamics -- Entropy and The Second Law -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics 0:04:00 Energy Is Conserved for an Isolated System... 0:06:51 Entropy 0:15:53 Carnot Cycle 0:24:18 Efficiency 0:27:52 Data on an Adiabat 0:33:50 Temperature-Entropy Diagram 0:34:48 S is a State Function

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Lecture 13. The Carnot Cycle.

uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 13. Thermodynamics and Chemical Dynamics -- The Carnot Cycle -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:00:06 Carnot Cycle 0:14:59 Efficiency 0:21:05 S is a State Function 0:26:43 Efficiency of Irreversible Processes 0:30:13 Clausius Inequality 0:33:42 The Second Law of Thermodynamics

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Lecture 14. The Gibbs Energy.

uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 14. Thermodynamics and Chemical Dynamics -- The Gibbs Energy -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:07:14 J. Willard Gibbs 0:12:52 Entropy in Isolated and Unisolated Systems 0:26:04 Helmholtz Energy 0:28:02 Parr Bomb

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uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 15. Thermodynamics and Chemical Dynamics -- Getting to Know The Gibbs Energy -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:02:42 Entropy in Isolated and Unisolated Systems 0:06:09 Enthalpy and Internal Energy for a Spontaneous Process 0:07:20 Helmholtz Energy 0:09:57 Parr Bomb 0:11:16 Gibbs Energy 0:24:40 Gibbs-Helmholtz Equation 0:30:19 Standard Molar Gibbs

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name: Lecture 15. Getting to know the Gibbs Energy.


Lecture 16. The Chemical Potential.

uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 16. Thermodynamics and Chemical Dynamics -- The Chemical Potential -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:02:50 Energy Relations with Different Constants 0:04:49 Direction of Spontaneous Change 0:06:28 G and Temperature 0:08:28 The Third Law of Thermodyanimcs 0:10:32 Gibbs-Helmholtz Equation 0:29:33 Partial Molar Gibbs Energy 0:42:34 Gibbs-Duhem Equation

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Lecture 17. Finding Equilibrium

uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 17. Thermodynamics and Chemical Dynamics -- Finding Equilibrium -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:00:58 Free Energy of an Individual Species 0:07:16 Chemical Potential 0:10:18 Why is G Bowed? 0:24:58 Three Types of Reactions

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Lecture 18. Equilibrium in action.

uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 18. Thermodynamics and Chemical Dynamics -- Equilibrium In Action -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:01:45 Chemical Potential of Species 0:07:39 Extent of Reaction 0:11:35 Standard Molar Gibbs 0:39:58 Henry Louis Le Chatelier 0:42:35 Haber-Bosch Process 0:45:48 Le Chatelier's Principle

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uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 19. Thermodynamics and Chemical Dynamics -- Observational Chemical Kinetics -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:02:21 Le Chatelier's Principle 0:06:30 Van't Hoff Equation 0:08:12 Summary of Thermodynamics 0:12:30 Ludwig Wilhelmy 0:13:12 Stoichiometric Reaction 0:17:53 Extent of Reaction 0:22:44 Rates 0:34:46 Determining Rate Law by Method of Initial Rates 0:40:05 Determining Rate Law by Using an Integrated Rate Law

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name: Lecture 19. Observational Chemical Kinetics


Lecture 20. The Integrated Rate Law.

uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 20. Thermodynamics and Chemical Dynamics -- The Integrated Rate Law -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:00:41 Two Types of Reactions 0:02:19 Stoichiometric Reaction 0:07:14 Experimentally Determining the Rate Law 0:17:48 Use Integrated Rate Law to Define Half-Life 0:20:30 Second Order Reaction 0:21:56 Zero Order Reaction 0:23:56 Catalyzed Reactions 0:26:00 Common Integrated Rate Laws 0:27:06 Three Methods of Classifying a Reaction 0:30:34 Reversible Reactions

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uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 21. Thermodynamics and Chemical Dynamics -- The Steady State Approximation -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:03:36 Svante Arrhenius 0:05:59 Arrhenius Equation 0:10:25 Consecutive Reactions 0:20:23 Steady State Approximation 0:33:58 Irvine Langmuir and the Lightbulb 0:42:20 Lindeman-Hinshelwood Mechanism 0:48:18 Applying the Steady State Approximation

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name: Lecture 21. The Steady State Approximation.


Lecture 22. Midterm 2 Exam Review.

uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 22. Thermodynamics and Chemical Dynamics -- Midterm Exam Review -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics 0:06:52 Ammonia Synthesis Reaction 0:15:05 The Carnot Cylce 0:26:33 Clausius Inequality 0:28:19 Prediction about 3 Types of Processes 0:33:20 S is a State Function 0:37:09 Chemical Potential and Free Energy

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Die Chemie des Berylliums

keywords: Anorganik Vortrag Beryllium

uk: Математика, природничі науки

description: Prof. Dehnicke klärt auf über Gefahren, Gebrauch und Chancen in der Berylliumchemie.

@language: de

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name: Paul Jerabek, Julian Hegemann, Andreas Authmann


keywords:
Lange Nacht der Chemie
Kernchemie
Vortrag

uk: Математика, природничі науки

description: Prof. Jungclas erzählt die kurvenreiche Geschichte von der Entdeckung der Transactinide und was es mit den Namen der neuesten Elemente auf sich hat.

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name: Transactinide: Die super-schweren Übergangsmetalle: Die 8. Lange Nacht der Chemie


Carbone: Die 7. Lange Nacht der Chemie

keywords:
Lange Nacht
Theoretische Chemie

uk: Математика, природничі науки

description: Prof. Frenking zeigt und erklärt was die neue Stoffklasse der Carbone ausmacht.

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uk: Математика, природничі науки

description: Prof. Geyer wirft einen Blick auf die Entstehung der Erde und des ersten Lebens, hinterfragt einige der aktuellen Erklärungsmodelle und erklärt, warum man die Formosereaktion nie in einer OC-Vorlesung durchnehmen wird.

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name: Präbiotische Chemie: Woher stammen die Moleküle des Lebens?: Die 8. Lange Nacht der Chemie 2011


uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 23. Thermodynamics and Chemical Dynamics -- Lindemann-Hinshelwood Part I -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:00:06 Lindermann-Hinshelwood 0:03:46 The Steady-State Approximation 0:21:26 Two Limiting Experimentally Observed Rate Laws 0:24:40 Elementary Reactions 0:31:10 The Strong Collision Assumption 0:38:04 The Kinetics of Pressure-Dependent Reactions 0:45:44 Reactions Where a Pre-Equilibrium is Established

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name: Lecture 23: Lindemann-Hinshelwood Part I


Lecture 26. Transition State Theory

uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 26. Thermodynamics and Chemical Dynamics -- Transition State Theory -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:02:54 Where Does the Arrhenius Equation Come From? 0:04:34 Transition State Theory 0:11:16 Activated Complex 0:14:30 Equilibrium Constants from Partition Functions 0:23:25 Calculating the Partition Function 0:26:28 Vibration Along the Reaction Coordinate 0:32:06 The Eyring Equation 0:35:38 Calculating the Pre-Exponential Factor in the Arrhenius Equation 0:39:27 Activities 0:40:26 Debye-Huckel Limiting Law 0:42:02 Thermodynamic Constant 0:47:25 Equation for the Kinetic Salt Effect

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Lecture 27. The Final Exam

uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 27. Thermodynamics and Chemical Dynamics -- The Final Exam -- Instructor: Reginald Penner, Ph.D. Description: UCI Chem 131C covers the following topics: Energy, entropy, thermodynamic potentials, chemical equilibrium, and chemical kinetics. Index of Topics: 0:05:36 TST for Ionic Reactions in Solution 0:14:40 Thermodynamic Equilibrium Constant 0:24:58 Oppositely Charged Ions Attract... 0:29:52 Equations at Inifinte Dilution 0:35:57 Enzyem Review Problem 0:38:24 The Lineweaver-Burk Plot 0:40:11 Kinetics of Steady State Reaction 0:46:18 Rules for Reaction Rate 0:49:36 Summary of Three Methods

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uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 09. Thermodynamics and Chemical Dynamics -- The First Law (review) & Adiabatic Processes Part II -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:01:16 Internal Energy 0:04:30 Heat 0:06:01 Enthalpy 0:16:47 Adiabatic Processes

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name: Lecture 09. The First Law (review) & Adiabatic Processes Part II


Lecture 24. Enzymes: Pt. I

uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 24. Thermodynamics and Chemical Dynamics - Lindemann-Hinshelwood Part II - Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:00:06 Enzymes 0:07:58 Most Elementary Reactions are Unimolecular or Bimolecular 0:09:45 The Lindmann-Hinshelwood Mechanism 0:16:53 The Kinetics of Pressure-Dependent Reactions 0:22:34 The Michaelis-Menten Equation

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uk: Математика, природничі науки

description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 25. Thermodynamics and Chemical Dynamics -- Enzymes Pt. II -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:00:06 Enzymes 0:12:36 The Michaelis-Menten Equation 0:20:27 Michaelis-Menten Kinetics 0:24:30 Ratio Between V and Vmax 0:25:34 Lineweaver-Burk Plot 0:32:56 Classifying Inhibitors

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name: Lecture 25. Enzymes (second & final attempt)


uk: Математика, природничі науки

description: Chem 1A is the first quarter of General Chemistry and covers the following topics: atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:01:55 "Fundamentals" 0:02:40 Significant Figures 0:11:44 Dimensional Analysis: Conversion Factors 0:12:30 Fundamental Problems 0:22:22 Structure of an Atom 0:25:07 Cartoon 0:26:06 Isotopes, Natural abundance, and Molecular Mass 0:29:11 Average Molecular Mass 0:32:29 Periodic Table 0:34:21 Naming 0:37:12 Bonding 0:38:09 Types of Bonding 0:40:28 Empirical vs. Chemical Formulas 0:42:30 Cartoon: Ionic Bonds 0:43:28 Ionic Bonds 0:48:26 Charges of Atoms 0:50:50 Inert Pair Effect 0:51:36 Naming Ionic Compounds

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name: Lecture 01. Introduction to General Chemistry


uk: Математика, природничі науки

description: Chem 1A is the first quarter of General Chemistry and covers the following topics: atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:17 Quantum Theory: Structure of an Atom 0:01:50 The Birth of Quantum Mechanics 0:03:17 Development of Atomic Models 0:05:09 Electromagnetic Radiation 0:06:11 Properties of Waves 0:07:25 Transverse Waves - Frequency 0:10:16 Electromagnetic Waves 0:11:23 Electromagnetic Spectrum 0:20:59 Plank's Quantum Theory 0:27:52 Black Body Radiation 0:34:19 Light: A Wave or a Particle 0:35:29 Photoelectric Effect

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name: Lecture 03. Introduction to Quantum Mechanics


Lecture 04. Wavelengths

uk: Математика, природничі науки

description: Chem 1A is the first quarter of General Chemistry and covers the following topics: atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:24 Wave Interference 0:03:22 Double Split Experiment: Young 0:07:25 Wave or Particle? 0:08:58 DeBroglie Wavelength 0:18:54 Heisenberg Uncertainty Principle 0:26:09 Wavefunctions, Energy Levels, and Particle in a Box 0:32:05 Nodes 0:33:38 Shrodinger Equation 0:36:57 Particle in a Box 0:41:20 A Hydrogen Atom 0:44:00 We'll Start with Shrodinger 0:45:24 Bohr Model of the Atom 0:46:39 Stair and Ball Analogy 0:47:12 Bohr Model Energy Levels 0:50:07 Rydberg Equation: Derivation

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Lecture 05. Emission Spectra

uk: Математика, природничі науки

description: Chem 1A is the first quarter of General Chemistry and covers the following topics: atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:20 Rydberg Equation: Derivation 0:01:22 Sign Conventions for Energy 0:03:52 Example of Rydberg Equations 0:05:19 Find Initial Energy Level of a Photon 0:09:11 Wavelength of a Photon 0:13:32 Lasers 0:15:38 Why Can't We See the Laser Until it Hits the Wall? 0:19:00 Wavelength of Beam of Light 0:26:15 Emission Series 0:27:47 Emission/Absorption Spectra 0:29:21 What Do We Use Emission Spectra For? 0:31:01 Emission Spectra in Astronomy 0:32:41 The Grass is Green Because... 0:35:16 Why is the Sky Blue? 0:39:06 Black Body Radiation 0:40:11 Other Transitions 0:42:46 Green Fluorescent Protein 0:44:41 Shrodinger Equation 0:46:07 Atomic Orbitals

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Lecture 06. Quantum Numbers

uk: Математика, природничі науки

description: Chem 1A is the first quarter of General Chemistry and covers the following topics: atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:16 Quantum Numbers - Introduction 0:03:56 Principle Quantum Number 0:04:30 Angular Momentum Quantum Number 0:07:01 Magnetic Quantum Number 0:09:09 Filling in Quantum Numbers 0:15:05 Shielding and Penetration 0:18:00 Energies of Orbitals 0:21:12 Electron Configuration 0:26:11 Energies in Relation to Periodic Table 0:28:07 Diamagnetism vs Paramagnetism 0:30:15 Electron Configurations of Ions 0:33:14 Electron Configuration Exception 0:36:05 Examples of Configuration 0:40:30 Discussion Question 0:42:25 Periodic Trends 0:43:37 Development of the Periodic Table 0:45:24 Periodic Table Outline 0:46:17 Effective Nuclear Charge 0:48:47 Atomic Radius 0:54:39 Ionic Radius

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Lecture 07. Periodic Trends Continued

uk: Математика, природничі науки

description: Chem 1A is the first quarter of General Chemistry and covers the following topics: atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:29 Examples of Ionic Radius 0:06:11 First Ionization Energy 0:18:53 Second and Third Ionization Energy 0:21:13 Electron Affinity 0:31:08 Electronegativity 0:38:07 Inert Pair Effects 0:43:16 Diagonal Relationships

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Lecture 08. Chemical Bonds

uk: Математика, природничі науки

description: Chem 1A is the first quarter of General Chemistry and covers the following topics: atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:01:57 Types of Bonds 0:04:30 Energy of Ionic Bond Formation 0:10:46 Lewis Dot Symbol 0:11:58 Ionic Bonds 0:14:50 Covalent Bonding: Molecular Compounds 0:16:04 General Lewis Structure Guidelines 0:19:11 Non-Octet Breaking Examples 0:32:48 Formal Charges 0:48:37 Breaking the Octet Rule

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Lecture 09. Breaking the Octet Rule

uk: Математика, природничі науки

description: Chem 1A is the first quarter of General Chemistry and covers the following topics: atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:17- Breaking the Octet Rule 0:06:44 Resonance Structures 0:14:28 Delocalized Electrons 0:16:40 Line Structures and Rules 0:24:06 What is the Formula... 0:27:55 Benzene 0:30:30 Electronegativity 0:40:06 Microwaves 0:44:29 Back to Lewis Structures

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uk: Математика, природничі науки

description: Chem 1A is the first quarter of General Chemistry and covers the following topics: atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:24 Polarizing Power and Covalent Character 0:02:36 Bond Strength and Lengths 0:03:38 Molecular Shape and Structure 0:05:29 VSEPR 0:10:40 Steric Number 2 0:12:20 Steric Number 3 0:16:19 Steric Number 4 0:21:44 Steric Number 5 0:32:31 Steric Number 6 0:38:42 Geometry Examples

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name: Lecture 10. Polarizing Power and Covalent Character


Lecture 11. Dipole Moment

uk: Математика, природничі науки

description: Chem 1A is the first quarter of General Chemistry and covers the following topics: atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:12 VSEPR Geometry 0:10:11 Dipole Moment 0:19:35 XeF3Cl2 0:25:18 Two Different Lewis Structures 0:41:22 Greenhouse Gases 0:46:32 Two Theories of Bonding

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Lecture 12. Two Theories of Bonding

uk: Математика, природничі науки

description: Chem 1A is the first quarter of General Chemistry and covers the following topics: atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:09 Two Theories of Bonding 0:01:21 H2 Bonding 0:03:36 Valence Bond Theory: Types of Bonds 0:07:10 Sigma Bonds 0:10:09 Pi Bonds 0:14:17 Atomic Orbital Hybridization 0:17:54 sp 0:22:30 sp^2 0:25:55 sp^3 0:27:56 d Orbitals 0:29:24 How to find Hybridization 0:31:53 Chart of Orbitals 0:32:48 Steric Numbers, Lone Pairs 0:37:21 Double and Triple Bonds in Hybridization

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uk: Математика, природничі науки

description: UCI Chem 1A is the first quarter of General Chemistry and covers the following topics: Atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:13 Examples of Types of Hybridization 0:25:34 Ethane Video 0:27:34 Back to Lewis Structures... 0:37:52 Hybridization of ClF4 0:39:55 Two Theories of Bonding 0:40:49 Molecular Orbital Theory 0:43:16 Bonding and Anti-Bonding Orbitals 0:44:59 Wave Interference 0:45:07 MO Theory

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name: Lecture 13. Hybridization Examples and MO Diagram Introduction


Lecture 14. Molecular Orbital Theory

uk: Математика, природничі науки

description: UCI Chem 1A is the first quarter of General Chemistry and covers the following topics: Atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:10 Molecular Orbital Theory 0:01:22 Bonding and Anti-Bonding Orbitals 0:02:42 Wave Interference 0:03:59 MO Theory: s Orbitals 0:06:04 MO Theory Energy Diagram 0:10:21 Bond Order Notes 0:16:32 MO Theory: p Orbitals 0:19:00 Steps to Make MO Diagram 0:36:11 Molecular Orbital Diagrams of Ions 0:44:22 Case of Molecular Oxygen 0:47:44 Practice

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uk: Математика, природничі науки

description: UCI Chem 1A is the first quarter of General Chemistry and covers the following topics: Atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:18 Practice 0:10:54 MO Theory 0:12:56 Working Through Carbon Monoxide 0:20:37 When Drawing MO Diagrams 0:22:31 Heteronuclear Diatomics 0:27:17 What is an Intermolecular Force? 0:29:27 Types of Forces 0:31:14 Dipole-Dipole Forces 0:37:10 Hydrogen Bonds 0:43:52 Ion Dipole Forces

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name: Lecture 15. Molecular Orbital Theory Pt. 2


uk: Математика, природничі науки

description: UCI Chem 1A is the first quarter of General Chemistry and covers the following topics: Atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:22 Hydrogen Bonding Video 0:01:57 Ion Dipole Forces 0:02:56 Dispersion Forces 0:09:57 Van der Waals Forces 0:12:03 Summary of Intermolecular Force Strengths 0:15:32 Listing Intermolecular Forces 0:32:10 Effects on Boiling and Melting Points 0:34:28 Boiling Point 0:36:39 Ranking According to Melting Point 0:42:30 Boiling Point/Melting Point Examples 0:44:41 Summary of Intermolecular Force Strengths 0:48:46 Rank According to Boiling Point

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name: Lecture 16. Dipole Forces, Dispersion Forces


Lecture 17. Review

uk: Математика, природничі науки

description: UCI Chem 1A is the first quarter of General Chemistry and covers the following topics: Atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:46 Hydrogen Bonding Importance 0:06:32 Ranking Example 0:07:34 Review: ICl4-, ICl4+ 0:35:38 Review: MO Diagram for NO 0:43:59 Review: Constructive and Destructive Interference 0:45:30 Review: Rank According to Boiling Point

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Lecture 18. Gas Laws, Part 1

uk: Математика, природничі науки

description: UCI Chem 1A is the first quarter of General Chemistry and covers the following topics: Atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:02:27 Gases 0:06:26 Pressure of Gas 0:07:25 Barometers 0:14:25 What is an Ideal Gas? 0:22:09 Boyle's Law 0:26:02 Charles Law 0:33:19 Avogadro's Law 0:37:02 More Predictions of Gases 0:38:05 Ideal Gas Law

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Lecture 19. Gas Laws, Part 2

uk: Математика, природничі науки

description: UCI Chem 1A is the first quarter of General Chemistry and covers the following topics: Atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:15 Ideal Gas Law 0:06:32 Examples of the Ideal Gas Law 0:32:40 Density Calculations 0:34:24 Molar Mass Calculations 0:36:38 Density Example 0:44:30 Dalton's Law of Partial Pressures

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uk: Математика, природничі науки

description: UCI Chem 1A is the first quarter of General Chemistry and covers the following topics: Atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:23 Dalton's Law of Partial Pressures 0:02:43 Mole Fraction 0:04:41 Working Out Partial Pressures 0:13:33 Volume of Oxygen 0:28:59 Finding Final Pressure 0:35:19 Pressures of Mixed Gases

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name: Lecture 20. Dalton's Law of Partial Pressures


Lecture 21. Kinetic Molecular Theory

uk: Математика, природничі науки

description: UCI Chem 1A is the first quarter of General Chemistry and covers the following topics: Atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:28 Gas Stoichiometry 0:08:51 Kinetic Molecular Theory of Gases 0:12:20 Average Kinetic Energy 0:15:32 Kinetic Molecular Theory and Pressure 0:19:52 Speed Distributions 0:24:27 Root Mean Square Speed 0:35:43 Diffusion and Effusion 0:37:30 Effusion Application 0:40:26 Diffusion and Effusion 0:44:00 Gas Effusion

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uk: Математика, природничі науки

description: UCI Chem 1A is the first quarter of General Chemistry and covers the following topics: Atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:50 Examples of Effusion 0:02:02 Ratio of Rate of Effusion 0:09:16 Rank in Order of Increasing Speed of Effusion 0:14:16 Comparing Effusion 0:19:26 Average Speed of Gases 0:25:00 Real Gases 0:30:56 Volume 0:33:46 Compression Factor 0:38:32 Van der Waals Equation 0:41:55 Methane Gas Sample 0:43:00 Pressure of He

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name: Lecture 22. Effusion Continued and Real Gasses


Lecture 23. Final Exam Review

uk: Математика, природничі науки

description: UCI Chem 1A is the first quarter of General Chemistry and covers the following topics: Atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:00:13 Energy, Frequency, and Wavelength of Light 0:09:38 Production of Chlorine 0:15:28 Wavelength of Light 0:22:16 Empirical Formula of a Compound 0:29:28 Write a Balanced Equation... 0:35:12 Quantum Number Overview 0:38:59 Uncertainty of Lithium 0:44:08 Electron Configuration

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uk: Математика, природничі науки

description: Chem 1A is the first quarter of General Chemistry and covers the following topics: atomic structure; general properties of the elements; covalent, ionic, and metallic bonding; intermolecular forces; mass relationships. Index of Topics: 0:01:04 Acids 0:05:40 Ionic Naming Practices 0:19:53 Covalent Bonding 0:21:14 Naming Molecular Compounds 0:27:07 Moles, Masses, and Chemical Reactions 0:55:32 Energy

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name: Lecture 02. Acids and Covalent Nomenclature: Mole Masses and Energy


Lecture 01. Chemical Equilibrium Pt. 1.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 01. General Chemistry -- Chemical Equilibrium -- Part 1 Instructor: Ramesh D. Arasasingham, Ph.D. UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:12:18 Calculate Species at Equilibrium 0:25:24 Writing Law of Mass Action (Kc) 0:37:17 Steps for Writing Law of Mass Action

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Lecture 02. Chemical Equilibrium Pt. 2.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 02. General Chemistry -- Chemical Equilibrium -- Part 2 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:01:58 Using Reverse Reactions and Limiting Reagents 0:05:17 Percent Decomposition 0:07:41 Acid Base Equilibria 0:10:14 Examples of Acids 0:16:58 Bronsted Lowry Definition 0:18:14 Example Using Water 0:26:33 Defining "Conjugate Acid" 0:30:26 Conjugate Acid Examples 0:32:59 Introducing Acid Dissociation 0:37:27 HCl and Water Example 0:41:24 NH2- in Water Example

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Lecture 03. Chemical Equilibrium Pt. 3.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 03. General Chemistry -- Chemical Equilibrium -- Part 3 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:02:02 Aqueous Acids/Bases 0:04:42 Determining which is Acid/Base/Ca/Cb 0:07:04 Autoionization of Water 0:21:06 Introducing "pH" 0:27:09 Finding COncentration from pH 0:30:59 pH and Concentration Relationship 0:42:32 Acid Equilibrium

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Lecture 04. Acids and Bases. Pt. 1.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 04. General Chemistry -- Acids and Bases -- Part 1 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:01:31 pH Review 0:05:10 Determining if Solution is Acidic 0:06:52 Strong Acid Characteristics 0:08:22 Showing HCl as a Strong Acid 0:15:00 Percent Undissociated 0:18:51 Finding pOH 0:25:25 Weak Acids 0:27:22 CH5CO2H Example 0:38:24 Ka/pKa Table 0:47:25 Determine if Solution is Basic 0:48:49 Strong Bases

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Lecture 05. Acids and Bases. Pt. 2.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 05. General Chemistry -- Acids and Bases -- Part 2 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:01:27 Weak Acids Dissociate Partially 0:06:18 Summary of Ka and Strength of Acid 0:12:00 Bases Overview 0:14:20 NH2- and Strong Base Example 0:20:23 Weak Base NH3 Example 0:37:55 Rankning COmpounds Based on Base Strength 0:47:46 Weak Acid/Base Equilibria

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Lecture 06. Acids and Bases. Pt. 3.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 06. General Chemistry -- Acids and Bases -- Part 3 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:01:36 Summary of Bases 0:04:51 Review of Equilibria 0:13:03 Calculating pH of Solution 0:19:45 Polyprotic Acids 0:20:40 Monoprotic Acids 0:23:59 H2SO4 Example 0:33:21 h2CO3 Example 0:41:14 Finding Concentration of Polyprotic Acids

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Lecture 07. Acids and Bases. Pt. 4.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 07. General Chemistry -- Acids and Bases -- Part 4 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:00:00 Review of Carbonic Acid Example 0:15:43 Hydrolysis 0:18:10 Acid Base Properties of Salt 0:39:00 Calculating pH of Salt 0:47:09 Arranging Compounds from Most Acidic to Most Basic

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Lecture 08. Acids and Bases. Pt. 5.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 08. General Chemistry -- Acids and Bases -- Part 5 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:00:00 Putting Salt in Water Review 0:05:50 NaCl Example 0:09:41 Anion Possibilities 0:11:48 Calculating pH of NH4Cl 0:21:10 Acid in Water 0:27:06 Common Ion Effect 0:37:06 Calculating % Dissociation Common Ion Effect

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Lecture 09. Acids and Bases. Pt. 6.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 09. General Chemistry -- Acids and Base -- Part 6 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:00:00 Common Ion Effect Review 0:03:35 Buffered Solutions 0:09:20 Examples of Buffers 0:15:07 How Does a Buffer Work? 0:32:24 Calculating the pH of the Buffer

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uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 10. General Chemistry -- Buffered Solutions (Buffers) -- Part 1 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:05:18 Identifying Buffers 0:11:20 Weak Acid and Salt Example 0:17:23 What Makes this a Buffer? 0:22:23 Calculating the pH of a Buffered Solution 0:27:22 Designing Buffers at Specific pH Values 0:44:34 Acid Base Titration Curves

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name: Lecture 10. Buffered Solutions (Buffers) Pt. 1.


uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 11. General Chemistry -- Buffered Solutions -- Part 2 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:00:00 Titrations Review 0:10:14 Types of Titration 0:11:47 Strong Acid added to Strong Base Titration 0:32:35 Strong Base added to Strong Acid Titration 0:46:21 Finding Volume of Excess OH-

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name: Lecture 11. Buffered Solutions (Buffers) Pt. 2.


Lecture 12. Aqueous Equilibria Pt. 1.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 12. General Chemistry -- Aqueous Equilibria -- Part 1 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:00:00 Review on Strong Acid/Strong Base Titration 0:05:14 Weak Acid and Strong Base Titration 0:10:10 General Reaction 0:13:45 Titration Curves 0:19:04 Calculating pH before any Base is Added 0:31:29 pH at Equivalence Point 0:38:46 pH of a Weak Base 0:44:55 Titration Curve Concept

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Lecture 13. Aqueous Equilibria Pt. 2.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 13. General Chemistry -- Aqueous Equilibria -- Part 2 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:03:25 Weak Base vs. Strong Acid Example 0:07:04 pH Titration Curve Picture 0:12:10 Understanding Strong Acid Neutralizing Weak Base 0:14:33 Solubility Product 0:22:24 "Insoluble" Salts 0:26:26 Introducing Ksp 0:35:50 Rules ofr Solubility in Water 0:41:14 Solubility and Ksp

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Lecture 14. Aqueous Equilibria Pt. 3.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 14. General Chemistry -- Aqueous Equilibria -- Part 3 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:00:00 Equilibria Review 0:03:44 Calculating Ksp 0:10:40 Precipitation of Solubility Product 0:14:35 Complete Ion Equation 0:26:40 Precipitation Reaction 0:38:29 Calculating Concentration at Equilibrium 0:46:47 Common Ion Effect

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Lecture 15. Aqueous Equilibria Pt. 4.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 14. General Chemistry -- Aqueous Equilibria -- Part 4 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:00:00 Common Ion Effect Review 0:01:45 Finding Solubility of Compound Given Ksp 0:09:05 Effect of pH on Solubility 0:16:52 Solubility of Metal Salts of the Conjugate Bases of Weak Acids 0:20:05 Solubility of Metal Salts of the Conjugate Bases of Strong Acids 0:23:32 Finding Solubility of Compound in Buffered Solution 0:38:15 Electrochemistry 0:42:52 Oxidation Reduction Reactions

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Lecture 16. Electrochemistry Pt. 1.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 16. General Chemistry -- Electrochemistry -- Part 1 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:00:00 Oxidation Reduction Reaction Review 0:02:55 Oxidation Numbers 0:04:50 Rules for Assigning Oxidation Numbers 0:10:13 Calculating Oxidation Number Example 0:16:26 Redox Reactions 0:17:10 Half Reactions 0:23:09 Example of Redox Reactions 0:37:58 Balancing Oxidation-Reduction Reactions 0:47:04 Challenging Redox Question

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Lecture 17. Electrochemistry Pt. 2.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 17. General Chemistry -- Electrochemistry -- Part 2 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:00:00 Balancing Redox Reaction Review 0:14:46 Balancing Redox Reaction in Acidic or Basic Solution 0:19:07 Balancing Redox in Acidic Aqueous Solution 0:23:46 Rules for Balancing in Acidic/Basic Aqueous Solution 0:34:18 Example in Basic Aqueous Solution 0:47:56 Example in Acidic Solution

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Lecture 18. Electrochemistry Pt. 3.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 18. General Chemistry -- Electrochemistry -- Part 3 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:00:00 Review of Acidic/Basic Solutions 0:01:58 Spontaneous Electrochemistry Reactions 0:09:15 Galvanic (Voltaic) Cell 0:14:43 Example Using Batteries 0:21:53 Daniell Cell and Intro to Anode/Cathode 0:36:11 Electrodes 0:43:28 Shorthand notation for Cells

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Lecture 19. Electrochemistry Pt. 4.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 19. General Chemistry -- Electrochemistry -- Part 1 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:00:00: Galvanic Cells/Daniel Cell Review 0:04:54 Hydrogen Electrode 0:07:54 Cell Notation Example 0:19:40 Cell Potential, Voltage, Electromotive Force 0:25:34 Cell Potential and Free Energy 0:33:48 Reaction of N2 and H2 0:38:45 If Reaction is under Standard Conditions 0:48:10 Standard Reduction Potentials

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Lecture 20. Electrochemistry Pt. 5.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 20. General Chemistry Electrochemistry, Part 5 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:03:29 Review of Cell Potential 0:06:06 Standard Reduction Potential of Standard Electrode 0:13:15 Finding Cell Potential Example 0:26:13 Significance of Standard Reduction Potentials 0:38:02 Can Aqueous KMnO4 Oxidize Iron? 0:44:49 Standard Potentials and Equilibrium Constants

uk: вхід без авторизації


Lecture 21. Electrochemistry Pt. 6.

uk: Математика, природничі науки

description: Ramesh D. Arasasingham, Ph.D.UCI Chem 1C General Chemistry (Spring 2013) Lec 21. General Chemistry -- Electrochemistry -- Part 6 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:00:50 Ecell and K 0:04:25 Calculate K for the Equilibrium... 0:12:40 Nerst Equation 0:17:47 Calculate Potential of Daniell Cell 0:23:01 Galvanic Cell Review 0:29:52 Electrolysis (Electrolytic Cell) 0:42:52 Amounts of Products of Electrolysis

uk: вхід без авторизації


Lecture 22. Chemical Kinetics Pt. 1.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 22. General Chemistry -- Chemical Kinetics -- Part 1 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:00:00 Change in Free Energy Review 0:01:40 Intro to Chemical Kinetics 0:06:43 Defining Chemical Kinetics 0:09:57 Reaction Rate 0:15:02 Example of Reaction Rate 0:24:41 Average Rate of Concentration vs Time 0:34:13 Example of NO Gas Reaction Rate 0:40:08 Relationship Between Reaction Rates 0:47:57 Forward/Reverse Reactions

uk: вхід без авторизації


Lecture 23. Chemical Kinetics Pt. 2.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 23. General Chemistry -- Chemical Kinetics -- Part 2 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:00:00 Review on Rates 0:04:02 Kinetic Rate Laws 0:08:57 Example Using N2O5 0:15:53 Determining Rate Law and Order for Reaction 0:28:16 Determing Rate Expression and Value of the Constant 0:42:56 Measuring Rate of Chemical Reaction with Graphs

uk: вхід без авторизації


Lecture 24. Chemical Kinetics Pt. 3.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 24. General Chemistry -- Chemical Kinetics -- Part 3 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:00:00 Integrated Rate Law Intro 0:02:48 First order Reaction for Integrated Rate Law 0:04:58 Half Life 0:10:22 Finding Rate Constant for First Order Reaction 0:18:05 Second Order Reaction 0:25:19 Finding Concentration if Given Initial Concentrations 0:31:06 Zero Order Reaction 0:40:47 Summary of Kinetic Reactions 0:43:49 Integrated Rate Laws for Reactions with More than One Reactant

uk: вхід без авторизації


Lecture 25. Chemical Kinetics Pt. 4.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 25. General Chemistry -- Chemical Kinetics -- Part 4 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:00:00 Brief Review of Rate Law 0:03:07 Reaction Mechanism 0:10:00 Molecularity 0:15:39 Intermediates 0:18:21 Speed of reaction 0:21:59 Overall Reaction Example 0:32:00 Kinetics and Chemical Equilibrium 0:36:54 Experimentally Measured Rate Law 0:44:26 Rate Law Example Given Experiment Concentrations

uk: вхід без авторизації


Lecture 26. Chemical Kinetics Pt. 5.

uk: Математика, природничі науки

description: UCI Chem 1C General Chemistry (Spring 2013) Lec 26. General Chemistry -- Chemical Kinetics -- Part 5 Instructor: Ramesh D. Arasasingham, Ph.D. Description: UCI Chem 1C is the third and final quarter of General Chemistry series and covers the following topics: equilibria, aqueous acid-base equilibria, solubility equilibria, oxidation reduction reactions, electrochemistry; kinetics; special topics. Index of Topics: 0:00:00 Experimentally Measured Rate Law Review 0:03:02 Factors that Affect a Rate 0:09:43 Reaction Profile 0:14:13 More on Collision Theory 0:21:12 Arrhenius Equation

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Database Ops: Demos

cs: Informatika

de: Informatik

fi: tietojenkäsittelytiede

uk: Комп'ютерні науки

en: Computer Science

fr: Informatique

da: Datalogi

es: Ciencias de la Computación

nl: Informatica

cs: Technické vědy

de: Ingenieurwissenschaften

fi: tekniikka

uk: Інженерія

en: Engineering Sciences

fr: Ingénierie

da: Ingeniørvidenskab

es: Ingeniería

nl: Engineering

description: Easy and Effective Operation for production systems with PostgreSQL NTT (Nippon Telegraph and Telephone) group has made effort to introduce PostgreSQL to its production systems that are large and mission-critical. Introducing PostgreSQL, we found it may be an obstacle that operation tools for PostgreSQL are not provided enough. So we have developed tools for backup, data load, and performance monitoring. In the talk, we will introduce these tools and how to improve database operation using them. NTT group, which is the largest telecommunication career in Japan providing more than 120 million subscribers, has made effort introducing PostgreSQL to its production systems that support telecommunication. When we apply PostgreSQL to a production system, we will have to do many 'house-keeping chores'; At the beginning, you will have to load initial data to PostgreSQL, just after starting operation, you will have to periodically take back up files against data loss caused by media crash. Many proprietary DBMS provide operational and/or management tools to make DBA's work easier and more efficient. Additionally, such a tool provides an easy and standard way of oprerations, it enables not a skilled engineer to manage database systems well. Concerning PostgreSQL, such tools are not enough provided, it may be an obstacle to introduce PostgreSQL into enterprise systems. So we have developed some operational tools for taking back up, loading data and monitoring performance. And we provide technical know-hows about appropriate operations so that an engineer who is not familiar with PostgreSQL as we expect can manage PostgreSQL well. The talk will introduce our daily operation activities with assistance of the tools; pgrman for taking backups, pgbulkload for data loading with data cleansing, and pg_statsinfo for performance monitoring. Talking things above we hope to share PostgreSQL operation know-hows with many DBAs.

uk: вхід без авторизації

name: PGCon - PostgreSQL Conference for Users and Developers, Andrea Ross


Which is best? SQL Server vs Postgres

uk: Комп'ютерні науки

description: Falling in love with the free spirit of Postgres Using the StackOverFlow datasets, we'll ditch all the drama of a Microsoft stack and convert from SQL Server to Postgres on Windows. Once we do that, we'll migrate our entire DB and Web App from Microsoft to Linux using Postgres and Mono with as few code changes as possible. Having the StackOverFlow dataset loaded into SQL Server and a mock StackOverFlow app in ASP.NET MVC3, we are going to show various ways to ETL into Postgres from SQL Server on Windows. Once that is done, we'll go over some basics of going from Postgres on Windows to Postgres on Linux as we attempt to migrate our app. Once we get our back-end moved, we'll show just how easily you can wire up ASP.NET MVC3 to Postgres and then move our entire stack to Linux using Nginx and Mono. Since I am a SQL Server DBA, I will also be adding lots of opinion on where Postgres really shines compared to SQL Server and where it doesn't. This session will be informative, entertaining and incredibly nerdy.

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Hooks in PostgreSQL

uk: Комп'ютерні науки

description: PostgreSQL's extensibility is well known. Most people have heard of user types, user operators, the new extension capability, and such. But few know about hooks in PostgreSQL. This talk will cover all kinds of hooks available in PostgreSQL, and will show some tools using them already. Since the 8.3 release, the PostgreSQL developers add many hooks in PostgreSQL. Some extensions already make use of such hooks in the planner and in the executor. pgstatstatements is one of the various examples available. This talk will give a large overview of the hook system, and how to use it. We'll also see some of the extensions making use of them.

uk: вхід без авторизації


Improving foreign key concurrency

uk: Комп'ютерні науки

description: To lock and not to block Row locking is a mechanism that lets Postgres maintain strict consistency in certain database constraints, such as foreign keys. However, Postgres has historically only provided share and exclusive row locking, which I'll show to have significant drawbacks for concurrency. To solve the concurrency problem, two new row lock types are being introduced in release 9.2: SELECT FOR KEY SHARE and SELECT FOR KEY UPDATE. In this talk I'll explain how this new locking came to be, how it works, and how it helps significantly improve concurrency in applications.

uk: вхід без авторизації


uk: Комп'ютерні науки

description: Regular expressions (regex) are powerful tool for text processing. When dealing with large string collections it's important to search fast on that collections (i.e. search using index). Indexing for regex search is a quite hard task. This talk presents novel technique (and WIP patch for PostgreSQL implementing it) for regex search using trigram indexes. Proposed technique provides more comprehensive trigram extraction than analogues, i.e. higher performance. There are two existed approaches for index-based regex search. The FREE indexing engine is based on extractions continued text fractions from regex and perform substring search. Google Code Search approach present more sophisticated recursive analysis of regex with extraction of various regex attributes. This talk presents novel technique of regex analysis which is based on automata transformation rather than original regex analysis. Superiority of proposed technique will be proved by examples and tests. The talk would be organized as following: Introduction. Regular expressions Finite automata pg_trgm contrib module Existing techniques for index-based regular expression search FREE indexing engine Google Code Search Proposed technique Description Examples Comparison with analogues Limitations Performance results.

uk: вхід без авторизації

name: Index support for regular expression search


uk: Комп'ютерні науки

description: An open source machine learning library on RDBMS for Big Data age MADlib is an open-source library for scalable in-database analytics. It provides data-parallel implementations of mathematical, statistical and machine learning methods for structured and unstructured data. The MADlib mission is to foster widespread development of scalable analytic skills, by harnessing efforts from commercial practice, academic research, and open-source development. The library consists of various analytics methods including linear regression, logistic regression, k-means clustering, decision tree, support vector machine and more. That's not all; there is also super-efficient user-defined data type for sparse vector with a number of arithmetic methods. It can be loaded and run in PostgreSQL 8.4 to 9.1 as well as Greenplum 4.0 to 4.2. This talk covers its concept overall with some introductions to the problems we are tackling and the solutions for them. It will also contain some topics around parallel data processing which is very hot in both of research and commercial area these days.

uk: вхід без авторизації

name: MADlib: An open source library for in-database analytics


Making your own maps

uk: Комп'ютерні науки

description: An introduction in using free Geospatial data PostGIS is an extension to PostgreSQL that turns PostgreSQL into a superb spatial database. Storing spatial data in PostgreSQL is a great way too use up the space on your SSD's however using the data to make maps is much more fun. This talk is aimed at people with limited GIS experience and will talk about how to use OpenStreetMap data for map making. We will tell you how you can get free geo-spatial data from OpenStreetMap and how it can be loaded into a PostGIS database. Common methods of using and accessing your data will be discussed including: Open Source desktop GIS software Generating custom map tiles for use on your website Making pretty paper maps. This talk will introduce common tools and techniques used to with PostGIS when working with OpenStreetMap data. This is a user focused talk suitable for people who have next to no GIS background.

uk: вхід без авторизації


Monitoring Ozone Levels with Postgresql

uk: Комп'ютерні науки

description: Monitoring Ozone Levels with Postgresql Database Streaming Replication and Monitoring Postgres is used to manage data from the Ozone Monitoring Instrument aboard NASA's Aura spacecraft. The database implementation must handle large volumes of complex data transmitted continually from the satellite and generated by processing-intensive analyses performed by a team of atmospheric scientists. This talk will describe the architecture and some of the challenges faced. Focus will be given to our replication efforts, software developed for monitoring, and ongoing work to create a decentralized network of services commnicating through a RESTful interface. NASA and its international partners operate several Earth observing satellites that closely follow one after another along the same orbital track. This coordinated group of satellites, is called the Afternoon Constellation, or "A-Train", for short. Four satellites currently fly in the A-Train: Aqua, CloudSat, CALIPSO, and Aura. Each satellite has one or more observational instruments that are used together in the construction of high-definition three-dimensional images of the Earth's atmosphere and to monitor changes over time. Aura's instruments include the Ozone Monitoring Instrument (OMI). Data management and processing services for data harvested by OMI are provided by the OMI Science Support Team headquartered at Goddard Space Flight Center. Raw OMI data is received and initially processed at a ground station in Finland, then ingested into the system, where it is analyzed by scientists who submit processing jobs. Earth Science Data Types (ESDTs) are the products of these jobs, and one of the principal types of data managed in the database. Complex and abstract, ESDTs represent the interface between the raw science data and the data management system, and more than 900 are currently defined. Our current database implementation includes 10 clusters, each running Postgres 9.0.4, and divided into three production levels: development, testing, and operations. The central operations cluster handles on average about 200 commit statements per second, contains tables as large as 160 million rows, and is configured for streaming replication. New data is continually being added to the system, and the total quantitiy is increasing at a rate of about 60% per year. This influx of data, in addition to scientific analyses, can cause the load on the database to vary suddenly, and monitoring software has been developed to provide early warning of potential problems. The latest implementation of our software architecture uses decentralized services communicating through a RESTful interface. Databases are bundled together with their software component, and schema changes are managed using patch files. A utility has been created to apply the patches, and ensure schema consistency as the databases are amended. Perl's Rose-DB is used as an object-relational mapper, and database queries, via HTTP requests, are supported by encoding the query information into JSON. The new platform uses a different data model, making it necessary to sync between the two representations, and causing some difficulty with data duplication.

uk: вхід без авторизації


uk: Комп'ютерні науки

description: Using Python with and in PostgreSQL Python is one of the most popular application programming languages and there's a plethora of PostgreSQL libraries and utilities for Python. This talk will try to give an overview of the contemporary Python-PostgreSQL landscape in a way that's useful both for Python programmers starting on a PostgreSQL project and DBAs dealing with what those programmers wrote. We'll try cover a slightly opinionated selection of libraries, frameworks and technologies and give some recommendations. The richeness of the environment is sometimes confusing. Python people starting with PostgreSQL often don't know which driver or ORM library should they be using. Sometimes they're not aware of all the things PostgreSQL can offer to a Python programmer and the tools available. On the other hand, DBAs sometimes need to debug Python programs (mis)using their database and PostgreSQL-savvy people join or consult on projects written in Python and need to have at least a basic understanding of how Python works, particularily on the database connection front. We'll try to make both of these groups a bit more comfortable when dealing with the other. The talk will cover available drivers, focusing especially on psycopg2 and some of its lesser-known features and ORM libraries, focusing mainly on SQLAlchemy. We'll also discuss PL/PythonU, the possibilities it opens, along with some best practices and caveats.

uk: вхід без авторизації

name: On snakes and elephants: Using Python with and in PostgreSQL


uk: Комп'ютерні науки

description: Bigger servers, bigger problems The upcoming PostgreSQL 9.2 release features a large number of performance enhancements by many different authors, including heavyweight lock manager improvements, reduced lock hold times in key hot spots, better group commit, index-only scans, better write-ahead log parallelism, sorting improvements, and a userspace AVC for sepgsql. In this talk I'll give an overview of what was changed, how it helped, lessons learned, and the challenges that remain.

uk: вхід без авторизації

name: Performance and Scalability Enhancements in PostgreSQL 9.2


uk: Комп'ютерні науки

uk: вхід без авторизації

name: DB Ops: Easy and Effective Operation for production systems with PostgreSQL


PostgreSQL on Amazon

uk: Комп'ютерні науки

description: EC2 with somewhat reduced tears Amazon Web Services (AWS) has become a very popular platform for deploying PostgreSQL-backed applications. But it's not a standard hosting platform. We'll talk about how to get PostgreSQL to run efficiently and safely on AWS. Among the topics covered will be: -- Selecting an EC2 instance size, and configuring it for PostgreSQL. -- Dealing with ephemeral instance storage: What is it good for? How much do you need? -- Elastic Block Store: How much do you need? How do you configure it for best performance? -- AWS characteristics and quirks. -- Why replication is not optional on AWS. -- Backups and disaster recovery.

uk: вхід без авторизації


uk: Комп'ютерні науки

description: Range Types and Temporal: Past, Present, and Future Range Types didn't exist before, why do we need them now? How do they work? Why is "Temporal" important if we already have timestamps? How do we apply these concepts before deploying PostgreSQL 9.2? What's left to be done, and what solutions are in the works? I'll be asking the audience these questions, so -- Err... I mean: I will be answering these questions during the talk. Extensions, changes to core postgresql, and future ideas will be described in the context of solving a simple use case from 2006. These ideas build up to the larger point that powerful types are important, and database systems should do more to support them.

uk: вхід без авторизації

name: Temporal Data Management in PostgreSQL: Past, Present, and Future


Schemaless SQL: The Best of Both Worlds

uk: Комп'ютерні науки

description: The Best of Both Worlds Schemaless database are a joy to use because they make it easy to iterate on your app, especially early on. And to be honest, the relational model isn't always the best fit for real-world evolving and messy data. On the other hand, relational databases are proven, robust, and powerful. Also, over time as your data model stabilizes, the lack of well-defined schemas becomes painful. How are we supposed to pick one or the other? Simple: pick both. Fortunately recent advances in Postgres allow for a hybrid approach that we've been using at Heroku. The hstore datatype gives you key/value in a single column, and PLV8 enables JavaScript and JSON in Postgres. These and others in turn make Postgres the best document database in the world. We will explore the power of hstore and PLV8, explain how to use them in your project today, and examine their role in the future of data.

uk: вхід без авторизації


Schemaverse

name: PGCon - PostgreSQL Conference for Users and Developers

uk: Комп'ютерні науки

description: Compete against your fellow PostgreSQL users for prizes and the honor of the Schemaverse Champion title.

uk: вхід без авторизації


uk: Комп'ютерні науки

description: SQL change management has always sucked. This talk introduces Sqitch, the VCS-aware SQL change management application that doesn't suck. Come see how it works, learn the few simple rules you need to get the most out of it, and liberate yourself from the suckitude. SQL change management is hard. Most "migration"-style implementations require opaque naming conventions, prefer DSLs that cover a fraction of SQL, and require duplication of code for simple changes to existing functions. Such does not have to be. And now it's not Introducing Sqitch, simple SQL change management that doesn't suck. Sqitch doesn't care what programming language your app is written in. It has no opinions as to what database to use or what its schema should look like. And it doesn't require sequentially-named migration scripts or the use of any DSL other than SQL. Sqitch lets you to write SQL migration scripts thar target your database, and provides a simple, unintrusive interface for specifying dependencies, so that it can run things in the proper order. Best of all, when used with a version control system (initially Git), you can even modify idempotent deployment scripts between releases. Sqitch recognizes such changes, and automatically knows how to revert to earlier versions if required. And finally, Sqitch supports simple acceptance testing, so that you can be sure that your deployments are successful, and, if not, revert them. So come to this talk to learn all about Sqitch: How it works, where to get it, and how to get the most out of managing database deployments.

uk: вхід без авторизації

name: Simple SQL Change Management with Sqitch


Solaris Boot Environments for FreeBSD

uk: Комп'ютерні науки

description: reboot into different kernels and worlds Solaris boot environments are a painless way for sysadmins to revert changes and upgrades. Solaris boot environments are a painless way for developers to test multiple kernels and worlds. FreeBSD does not offer this functionality natively. I will describe the procedure of using boot environments on FreeBSD in detail and the due considerations. See the general idea at the link provided.

uk: вхід без авторизації

name: Berkeley System Distribution (BSD), Andrea Ross


uk: Комп'ютерні науки

description: The new binary replication protocols and tools in PostgreSQL 9.0 and 9.1 are a popular new feature - but they can also be used for other things than just replication! The new binary replication protocols and tools in PostgreSQL 9.0 and 9.1 are a popular new feature - but they can also be used for other things than just replication! PostgreSQL 9.1 includes server changes to allow standalone tools to request and respond according to the replication protocol. From these, tools like pg_basebackup allow a number of new possibilities. And the infrastructure put in place in 9.1 opens opportunities for further enhancements - some already on the drawing board and some just wild ideas so far.

uk: вхід без авторизації

name: The PostgreSQL replication protocol, tools and opportunities


uk: Комп'ютерні науки

description: Using HTML5, JavaScript, NodeJS with PostgreSQL PostgreSQL's object relational heritage makes it an outstanding choice for developing web applications that have a rich object model domain. See how PostgreSQL's object relational features allow for building database models to support a NodeJS data service feeding a 100% JavaScript web client. PostgreSQL's object relational heritage makes it an outstanding choice for developing web applications that have a rich object model domain. See how PostgreSQL's object relational features allow for building database models to support a NodeJS data service feeding a 100% JavaScript web client. Topics include: The benefits of a rich domain model in enterprise software, Comparing different architecture approaches: scripted model, table model and domain model. The dissonance between relational databases and the object model. Why NoSQL database's seem attractive Why relational is still the best choice for enterprise applications What is an "object relational" database Using Postgres' object-relational features to reduce the friction Compound Types Querying an object hierarchy Object relational views Exploring an example Define a rich domain in a JavaScript MVC web client Build a data source using NodeJS using PostgreSQL JavaScript drivers Defining models in Postgres Extending models in Postgres Yes, it's got a Hemi Use Google's plV8js language in PostresSQL to run JavaScript directly in the database Parse and process JSON payloads

uk: вхід без авторизації

name: Using PostgreSQL in modern enterprise web applications


WAL Internals Of PostgreSQL

uk: Комп'ютерні науки

description: Describes the Write-Ahead-Log Internals of PostgreSQL system. Improvements in WAL system that can be done to improve the performance. PostgreSQL uses WAL files to perform Crash recovery, Point In Time Recovery and Streaming Replication. This article will cover details of WAL system in PostgreSQL like what kind os WAL record gets generated on DML operations. WAL file name details and the contents it contains. The details of Async Commit and how it protects Partial Page writes using WAL system are covered. Finally some Advantages/Disadvantages and improvements w.r.t other RDBMS that can be done in PostgreSQL WAL system to improve its performance.

uk: вхід без авторизації


Writing a foreign data wrapper

uk: Комп'ютерні науки

description: Experiences with Informix Writing a foreign data wrapper (FDW) for PostgreSQL seems easy. However, there are many pitfalls. This talk will cover experiences from writing a FDW for Informix and will discuss problems with client libraries, data type mapping, optimizer support and performance related topics. Interested attendees will get a short overview on what they can expect from a FDW and (hopefully) learn something to do it better.

uk: вхід без авторизації


Autoscaling PostgreSQL: a Case Study

uk: Комп'ютерні науки

description: Managing Your Thundering Herd Amazon Web Services provides tremendous tools and techniques for scaling services up and down in response to planned or experienced load. However, too many systems are configured to use AWS as an equipment-rental facility, which wastes money and does not take advantage of AWS' unique properties. We'll talk about how to build systems that flex-scale using AWS tools. Among the topics we'll cover are: -- Designing your application and database for sharding and scaling. -- Planning for load spikes. -- Detecting load fluctuations. -- Scripting your scale-up/scale-down functionality. -- Scaling the database vs scaling the application front-end. -- Monitoring and fault-recovery. The demonstrations will be specifically about AWS, but the techniques can also be applied to other cloud environments.

uk: вхід без авторизації


uk: Комп'ютерні науки

description: Lightning talk from PGCon 2013.

uk: вхід без авторизації

name: CartoDB, and maps out of the Schemaverse


Corruption Detection and Containment

uk: Комп'ютерні науки

description: This will not be the most exciting talk, nor is there (currently) a simple answer to make hardware corruption problems go away. But it's important -- without being careful, it's easy for corruption to spread to replicas and backups, leaving data hopelessly lost. Or, a strange crash due to corruption could take many engineering resources to analyze. This talk is about kinds of hardware corruption that can and do happen, and the ways to detect and contain the corruption as quickly as possible. Additionally, we'll discuss a roadmap of improvements to postgresql to make this an easier process; as well as alternatives (such as detecting corruption in the filesystem). Note: Some storage systems do provide strong protections against data corruption. This talk is primarily (though not exclusively) targeted at users of the local filesystem, particularly on Linux. These are the topics that will be addressed: Why not deal with this in the filesystem? The different kinds of corruption. When to detect the corruption, and how to contain it. Data page checksums Backups and corruption Replication and corruption Background and offline detection More work to be done

uk: вхід без авторизації


uk: Комп'ютерні науки

description: Deployment automation for PostgreSQL Puppet is a platform for I.T. automation and configuration management that has gained popularity in the devops movement. This talk will provide an introduction to puppet and talk about how Afilias uses puppet to deploy and maintain over one hundred servers running PostgreSQL that support key parts of the DNS infrastructure Puppet allows DBA's to automate the installation and configuration of PostgreSQL across multiple servers. This talk will explain how puppet can be used to install and configure PostgreSQL. Automated configuration of your database servers keeps servers looking the same allowing you to control differences. Managing your database servers through puppet also allows your to easily reproduce your configuration for development and QA purposes. The talk will cover the basics of puppet and best practices for deploying puppet to manage PostgreSQL including: How to install PostgreSQL via puppet and create database clusters How to manage postgresql.conf, pg_hba.conf and .pgpass via puppet Best practices for dealing with configuration differences between different database servers and different environments Afilias is a registry services provider running registries for numerous TLDs including: .INFO, .ORG, .MOBI, .XXX, .IN, .ME, .ASIA, .MOBI. Afilias has been using PostgreSQL since the 7.x days and currently has more 100 production database servers running PostgreSQL.

uk: вхід без авторизації

name: Elephant Puppets: Deployment automation for PostgreSQL


uk: Комп'ютерні науки

description: Theory and practice of query progress indication Your query has been running for 70 hours. Should you kill it now or ignore angry calls for a few more hours and hope it returns the result? A question many a DBA have asked themselves. This talk will try to cover some of the techniques the database system could use in order to make decisions like that easier. We'll describe an approach based on existing research papers and report on the attempt of implementing it in a useful way inside PostgreSQL. There is ample scientific literature about reporting query progress in relational database systems. Some of the papers published even mention implementations in PostgreSQL. The practicalities, however, are often skimmed over. The talk will start by describing a method for calculating a progress indicator for running queries proposed by Surajit Chaudhuri, Vivek Narasayya, and Ravi Ramamurthy in their 2004 SIGMOD paper. We'll try to see how the terms used in the paper translate to modern PostgreSQL and what practical challenges lie before a hopeful implementer. We'll continue with a demonstration of a module that could be grown into a useful progress indicator solution. The topic will also be an excuse for a little excursion through the PostgreSQL executor and its specific behaviour that needs to be accounted for when calculating query progress. We'll try to give the listeners a basic understanding of how the executor works and familiarize them with nomenclature used in that subsystem.

uk: вхід без авторизації

name: Estimating query progress: Theory and practice of query progress indication


Hacking PostgreSQL

uk: Комп'ютерні науки

description: We'll cover how to write your first patch to PG, submit it for review, and profit! Ever wished PostgreSQL had a particular capability or feature? Know a bit of C? This talk will walk you through writing a patch for PG, what needs to be modified to add an option to an existing command (grammar, execution, etc) and the major components of PG (parser, commands, memory management, etc). We'll also cover the PG style guidelines, a crash-course on using git, how to submit your patch, and the review process.

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description: Why a 25-year old database is the next big thing.

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name: How Postgres Got Its Groove Back: Why a 25-year old database is the next big thing


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name: How Postgres Got Its Groove Back (Part 2)


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description: Availability, Durability, Architecture, Replication... explained How to implement PostgreSQL in a demanding project, what are the different technical offerings good for? All you wanted to know about replication and never dared to ask. PostgreSQL includes several High Availability solution, some replication solutions, and some external Open Source projects complement the offering. When to use which project and what for? This talk will present the usual needs you want to address in a medium size project and how to use several replication solutions to implement them.

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name: Implementing High Availability with PostgreSQL

name: PGCon - PostgreSQL Conference for Users and Developers, Andrea Ross


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description: PostgreSQL Enterprise Consortium (PGEcons) is a non-profit organization aiming for promoting PostgreSQL in production use, especially in mission critical area. It is formed by leading IT companies in Japan last year. Currently PGECons has 36 company members. In the first fiscal year, PGECons performed two major technical activities: PostgreSQL scale up/scale out evaluation (by Working Group 1: WG1) and establishing migration process from commercial DBMSs to PostgreSQL (by Working Group 2: WG2). These objectives were determined based on requests from PostgreSQL users and PGECons members and PGECons believes that sharing the experience is a big benefit for PostgreSQL community. In this talk we present current achievements of WG1 and WG2. PostgreSQL Enterprise Consortium (PGEcons) is a non-profit organization aiming for promoting PostgreSQL in production use, especially in mission critical area. PGECons performed two major technical activities conducted by two working groups (WG1 and WG2). In this talk we present current achievements of WG1 and WG2. The tests conducted by WG1 fall into two categories: scale up test and scale out test. For scale up test the target was a 80 physical core server to check how PostgreSQL 9.2 behaves against concurrent transactions. We will report the detailed results including the fact that PostgreSQL scales up to 80 concurrent users with read-only load. For the scale out tests, we tested three configurations: PostgreSQL's cascading replication with a master, a cascading standby, and four standbys, pgpool-II running in native replication mode with 4 nodes and Postgres-XC with 4 data nodes. Each configuration showed different characteristics. For example, pgpool-II performed well with read-only load, while Postgres-XC was strong in write load. We will present them with detailed data. To promote adoptions of PostgreSQL in enterprise domain, WG2, Operation and Design working group in official, examined several related issues on the start time and determined to focus on DBMS migration. According to the survey of attendees at PGECons opening seminar, users of Oracle, DB2, SQL Server, Sybase and MySQL are in total 2.5 times more than those of PostgreSQL, even in such a PostgreSQL event. Because many of those utilizations are predicted to be enterprise ones, dealing with them is indispensable for our purpose. In the first fiscal year, WG2, participated by 11 software businesses, carefully studied the DBMS migration process, divided it into 14 subtasks, and started to tackle to 11 of them by dedicated sub-teams. Selective topics from these activities as well as the big picture of WG2 will be presented in this talk.

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name: Introducing PostgreSQL Enterprise Consortium activities


Nulls Make Things Easier?

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description: Nulls are a very useful but also very error-prone relational database feature. This talk is designed to help applications developers better manage their use of Nulls. It covers the use of NULLs in relational databases, with a focus on Postgres behaviour. It covers three-value logic, comparing nulls, mapping nulls to strings, indexing nulls, and aggregates.

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description: Nested hstore with arrays support. We present a prototype of nested hstore data type with arrays support. We consider the new hstore as a step forward true json data type. Recently, PostgreSQL got json data type, which basically is a string storage with validity checking for stored values and some related functions. To be a real data type, it has to have a binary representation, development of which could be a big project if started from scratch. Hstore is a popular data type, we developed years ago to facilitate working with semi-structured data in PostgreSQL. It is mature and widely used data type with indexing support. Our idea is to extend hstore to be nested (value can be also hstore) data type and add support of arrays, so its binary representation can be shared with json. We present a working prototype of a new hstore data type and discuss some design and implementation issues.

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name: One step forward true json data type.: Nested hstore with arrays support


PostgreSQL Backup Strategies

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description: Rumor has it all these other users and companies do this thing called "backup" on their database. And people keep saying it's a good idea. But what does it actually mean? In this talk we'll go through the different options we have for PostgreSQL backups, how to use them and some good tips and best practices for setting up a backup strategy that actually works when disaster strikes.

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description: The Corosync/Pacemaker framework which is part of the LinuxHA stack can be used to provide monitoring and automatic failover capabilities. Now with streaming replication in place, it makes sense to use this robust infrastructure for PostgreSQL master and its replica handling. The open source pgsql resource agent also does this now. This talk will talk about using Corosync/Pacemaker with Postgres. The talk will be on the following lines: Introduce the Corosync/Pacemaker LinuxHA stack and talk about its features Talk about PostgreSQL 9 and the high availability requirements Talk about how streaming replication helps meet these requirements Talk about how using Virtual IP and the Corosync/Pacemaker resource agents, a robust high availability solution can be provided by using Corosync/Pacemaker is a great platform to use for HA and talking about it at PGCon will raise awareness about it.

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name: PostgreSQL High Availability with Linux-HA