Quiz 2-solutions - Version 177 Quiz 2 laude (51635) 1 This...

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Unformatted text preview: Version 177 Quiz 2 laude (51635) 1 This print-out should have 8 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. Constants R = 8 . 314 J K 1 mol 1 Definitions Q [C] c [D] d [A] a [B] b Equations G = H- T S G =- RT ln K ln K 2 K 1 = H R parenleftbigg 1 T 1- 1 T 2 parenrightbigg Q = K [at equil.] K w = [H + ][OH ] 001 5.0 points Using the law of mass action, write the equilibrium expression for the following reac- tion: 2 Cu 2+ (aq) + 4 I (aq) 2 CuI(s) + I 2 (aq) 1. K = [I 2 ] [Cu 2+ ] 2 [I ] 4 correct 2. K = [Cu 2+ ] 2 [I ] 4 [I 2 ] 3. K = [I 2 ][CuI] 2 [Cu 2+ ] 2 [I ] 4 4. K = [Cu 2+ ] 2 [I ] 4 [I 2 ][CuI] 2 Explanation: The equilibrium expression, K , is the ratio of products to reactants raised to their respec- tive stoichiometric coefficients. Solid species are not included in the expression....
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Quiz 2-solutions - Version 177 Quiz 2 laude (51635) 1 This...

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