'Reverse reaction' diaporamas de présentation

Chapter 12 Chemical Equilibrium

Chapter 12 Chemical Equilibrium. The Concept of Equilibrium. Chemical equilibrium occurs when a reaction and its reverse reaction proceed at the same rate. The Concept of Equilibrium. Consider colorless frozen N 2 O 4 . At room temperature, it decomposes to brown NO 2 :

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Unit 10: Kinetics, Thermodynamics, & Equilibrium

Unit 10: Kinetics, Thermodynamics, & Equilibrium. Essential Questions: How do chemical reactions happen in the first place? How fast do they go? Unit Exam is Friday May 8th. Kinetics = study of the rate or speed at which reactions occur.

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Chapter 14: Chemical Equilibrium

Chapter 14: Chemical Equilibrium. Renee Y. Becker Valencia Community College. Introduction. How far does a reaction proceed toward completion before it reaches a state of chemical equilibrium? 2. Chemical equilibrium

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Equilibrium

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Chapter 8

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Chemical Equilibrium

Chemical Equilibrium. Brown, LeMay Ch 15 AP Chemistry Monta Vista High School. 15.1: Chemical Equilibrium. Occurs when opposing reactions are proceeding at the same rate Forward rate = reverse rate of reaction Ex: Vapor pressure: rate of vaporization = rate of condensation

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Carboxylic Acid Derivatives: Nucleophilic Acyl Substitution

Carboxylic Acid Derivatives: Nucleophilic Acyl Substitution. Chapter 19. Reading Assignment. DO: Sections 19.0 - 19.1, 19.4, 19.5, 19.7 - 19.15, 19.17 - 19.20, 19.22 - 19.24, 19.35 Problems READ WITHOUT LECTURE: Sections 19.16, 19.26 - 19.34 SKIP: Sections 19.2 - 19.3, 19.6, 19.21, 19.25.

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Carboxylic Acid Derivatives: Nucleophilic Acyl Substitution

Carboxylic Acid Derivatives: Nucleophilic Acyl Substitution. Chapter 19. Reading Assignment. DO: Sections 19.0 - 19.1, 19.4, 19.5, 19.7 - 19.15, 19.17 - 19.20, 19.22 - 19.24, 19.35 Problems READ WITHOUT LECTURE: Sections 19.16, 19.26 - 19.34 SKIP: Sections 19.2 - 19.3, 19.6, 19.21, 19.25.

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Formation of a molecular species

Formation of a molecular species. It is the same as precipitates or gases except a liquid is formed. Acid base neutralization reactions will produce water. NaOH + HNO 3 ? H 2 O (l) + NaNO 3 ( aq ). Strong acids. Strong Bases. these make a lightning bolt on the periodic table!.

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Equilibrium

Equilibrium. Chapter 13 and 14. Homework . Chapter 13 pg 628 1-71 odd Chapter 14 pg 688 11-87 odd. AP Test. Historically, the first question on the free response has ALWAYS been an equilibrium question.

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Warm Up

Warm Up. What does the word equilibrium mean to you?. Chapter 18.2 Reversible Reactions and Equilibrium. Darren Dressen Chemistry CP Los Altos High School. Key Concepts/Tasks. What does chemical equilibrium really mean and how does an equilibrium change with time?

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CHEMICAL EQUILIBRIUM

CHEMICAL EQUILIBRIUM. Equilibrium and chemical reactions Consider the following system (water in a conical flask) When the container is open, the water level drops as the water evaporates If the container is closed, the water level also begins to drop, but then it reaches

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Equilibrium

Equilibrium. Equilibrium. Equilibrium: When the rate of the forward reaction equals the rate of the reverse reaction and the amount of the reactants and products remain unchanged. Equilibrium. Demo Beaker 1 is the reactants Beaker 2 is the products

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Using standard electrode potentials to calculate electrochemical cell voltages

Using standard electrode potentials to calculate electrochemical cell voltages. Chapter 19 Pages 768-773. An electrochemical (voltaic) cell consists of an oxidation reaction and a reduction reaction to produce a voltage for the cell. Ex: Batteries

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Equilibrium

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An intriguing example of how chirally enriched amino acids in the prebiotic world can generate sugars with D-configurati

Cordova et al. Chem. Commun ., 2005 , 2047-2049. An intriguing example of how chirally enriched amino acids in the prebiotic world can generate sugars with D-configuration & with enantioenrichment:. The Model:.

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Question 1

Question 1. Which is the correct equilibrium constant expression for the following reaction? Fe 2 O 3 (s) + 3H 2 (g) <--> 2Fe(s) + 3H 2 O(g) A) K c = [Fe 2 O 3 ] [H 2 ] 3 /[Fe] 2 [H 2 O] 3 B) K c = [H 2 ]/[H 2 O] C) K c = [H 2 O] 3 / [H 2 ] 3

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