2.1 Data in the table below were collected at 25°C for the following reaction:2 I–(aq) + S2O82–(aq) I2 (aq) + 2 SO42-(aq)a) Determine the rate law for the reaction.b) Calculate the rate constant, giving the correct units for k. Initial concentration (mol-dm)Initial rate (mol-dm-3.s-1)Exp[r][S2O8 2-110.0800.04012.5 x 10620.0400.0406.25 x 1060.0800.0206.25 x 10640.0320.0405.00 x 10650.0600.0307.00 x 10-63.

The general rate law equation Rate=k[A]x[B]y From given equation Rate=k[I-]x[S2O82-]y

Answered: Initial concentration (mol-dm) Initial…

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter32: Radiochemical Methods

Section: Chapter Questions

Problem 32.12QAP

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Question

2.1 Data in the table below were collected at 25°C for the following reaction:
2 I
–
(aq) + S2O8
2–
(aq) I2 (aq) + 2 SO4
2-
(aq)

a) Determine the rate law for the reaction.
b) Calculate the rate constant, giving the correct units for k.

Initial concentration (mol-dm)
Initial rate (mol-dm-3.s-1)
Exp
[r]
[S2O8 2-1
1
0.080
0.040
12.5 x 106
2
0.040
0.040
6.25 x 106
0.080
0.020
6.25 x 106
4
0.032
0.040
5.00 x 106
5
0.060
0.030
7.00 x 10-6
3.

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