The reaction of peroxydisulfate ion (S2O82-) with iodine ion (I-) is S O 2- + 3I- 2SO 2- + I - 2 8 (aq) (aq) --- 4 (aq) 3 (aq) From the following data collected at a certain temperature, determine the rate law and calculate the rate constant. Experiment [S O2-] (M) [I] (M) Initial Rate (M/s) 1 0.080 0.034 2.2 x 10-4 2 0.080 0.017 1.1 x 10-4 3 0.16 0.017 2.2 x 10-4

Chemistry for Engineering Students
3rd Edition
ISBN:9781285199023
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter11: Chemical Kinetics
Section: Chapter Questions
Problem 11.52PAE
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The reaction of peroxydisulfate ion (S2O82-) with iodine ion (I-) is

 

S O 2- +    3I 2SO 2-    + I -

2 8 (aq) (aq) --- 4 (aq)  3 (aq)

 

From the following data collected at a certain temperature, determine the rate law and calculate the rate constant.

 

Experiment

[S O2-] (M)

[I] (M)

Initial Rate (M/s)

1

0.080

0.034

2.2 x 10-4

2

0.080

0.017

1.1 x 10-4

3

0.16

0.017

2.2 x 10-4

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