5-03-11 Exam4 Review

# 5-03-11 Exam4 Review - CH 302 Exam 3 Review Rate Law...

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CH 302 Exam 3 Review 5/03/11 Rate Law Reaction mechanism Integrated rate equations Temperature dependence of rate constants/activation energy Redox reaction/reduction potential Voltaic cells Electrolytic cells R ATE L AW 1. The following data were collected for the reaction: A + B 2 + 2C D [A] (M) [B 2 ] (M) [C] (M) Initial Rate (M/ s) 1 0.1 0.1 0.01 1.2 x 10 -3 2 0.2 0.1 0.01 4.8 x 10 -3 3 0.3 0.1 0.02 2.16 x 10 -2 4 0.4 0.2 0.01 3.84 x 10 -2 a. What is the rate law expression? Rate= k [A] 2 [B 2 ][C] b. What is the unit for k ? M -3 S -1 c. If the reaction rate is 4.8 x 10 -3 M/s, what is the rate of consumption of C? What is the rate of change of A? Consumption of C: 9.6 x 10 -3 M/s Change of A: -4.8 x 10 -3 M/s

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R EACTION M ECHANISM 2. Write a correct rate law expression for the following reaction with the proposed mechanism: Fast A + B C Slow C + B 2D Net A + 2B 2D Rate = k [A][B] 2 I NTEGRATED R ATE E QUATIONS 3. For the following reaction, The rate constant is 1.60 x 10
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5-03-11 Exam4 Review - CH 302 Exam 3 Review Rate Law...

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