Lecture 8 - In a particular equilibrium state of this...

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Chapter 6. Chemical Equilibrium
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hapter 6 Chemical Equilibrium Chapter 6 Chemical Equilibrium 1. The equilibrium constant Key: the meaning of [A], [B], [C], and [D]
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Manipulating Equilibrium Constance. Revise reaction: Reaction addition:
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Example: The equilibrium constant for the reaction H 2 O H + + OH is called K w (=[H + ][OH ]) and has the value 1.0 x 10 14 at 25 o C. Give K NH 3 = 1.8 x 10 5 for the reaction NH (aq) + H O NH + + OH , find K for the reaction NH + NH (aq) + H + . 3 ( q) 2 4 , 4 3 ( q) Equilibrium and Thermodynamics: 2. Equilibrium and Thermodynamics: Enthalpy change for a reaction is the heat absorbed or released when the reaction takes place under constant pressure. Standard enthalpy is obtained when all the actant and product at their standard state reactant and product at their standard state.
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30.4 130.4
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Le Chatelier’s principle: a particular equilibrium state of this system, the following concentration exist:
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Unformatted text preview: In a particular equilibrium state of this system, the following concentration exist: [H + ] = 5.0 M, [Cr 2 O 7 ] = 0.10 M, [Cr 3+ ] = 0.0030 M, [Br 1 ] = 1.0 M and [BrO 3 ] = 0.043 M. (1) Increase [Cr 2 O 7 ] from 0.10 M to 0.20 M; (2) increase [BrO 3 ] from 0.043 M to 0.1 M in what direction will the reaction proceed to reach equilibrium? React quotient, Q Temperature effect a. The equilibrium constant of an endothermic reaction b. The equilibrium constant of an exothermic reaction olubility Product: Solubility Product: Separation by precipitation: [Hg 2 2 ] and [Pb 2+ ] = 0.010 M. Is it possible to low the Hg concentration by 99.990% using I without precipitating Pb 2+ ? When Pb2+ start to precipitate, how much Hg remain in the solution?...
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This note was uploaded on 09/10/2009 for the course CHM 3120 taught by Professor Harrison during the Spring '08 term at University of Florida.

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Lecture 8 - In a particular equilibrium state of this...

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