Experiment 6 part 2

Experiment 6 part 2 - Experiment 6: Determining an...

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Experiment 6: Determining an Equilibrium Constant Chapter 14 (14.4-14.5)
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The Concept of Chemical Equilibrium A(g) B(g) k f k r Concentration vs. Time Rate vs. Time
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The Concept of Chemical Equilibrium Chemical Equilibrium is achieved when: the concentrations of the reactants and products remain constant and the rates of the forward and reverse reactions are equal. On the molecular level, bonds are still being broken and reformed. Equilibrium is highly dynamic.
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The Concept of Chemical Equilibrium The Law of Mass Action For a general reaction: The law of mass action is represented by the equilibrium expression: aA + bB cC + dD K c = [C] c [D] d [A] a [B] b K c is the equilibrium constant .
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The Importance of Equilibrium Constants K allows us to predict the direction in which the reaction will tend to proceed. K tells us whether to expect a reaction mixture at equilibrium to contain a high or low concentration of product. K >> 1 K << 1 Lie to the right Favor products Lie to the left Favor reactants Equilibrium Will
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Chemical equilibria are dynamic and therefore respond to changes in the experimental conditions:
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This note was uploaded on 05/01/2011 for the course CHEM 112 taught by Professor Hibbard during the Spring '08 term at Spelman.

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Experiment 6 part 2 - Experiment 6: Determining an...

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