The progress of the reaction between Iodine ions and potassium iodate(V) can be followed by withstanding samples of the reaction mixture at various times, quenching and then titrating with standard thiosulphate solution. The reaction equation is:I(aq) + IO3(aq) + 6H+(aq) + 4e ➡ I2(aq) + 3H2O(l)In one such experiment the following data were obtained. (see figure below)Determine the order of the reaction with respect to I(aq) and IO3(aq) ions Write the rate expression for the reaction. initial reactionInital Concentration (mol dm) of(aq)0.0190.038Rate/mo! dm³s1KIO (aq)0.01513.5 x 1067.0 x 10628.0 x 1060.0150.0380.030

Given, I(aq) + IO3(aq) + 6H+(aq) + 4e ➡ I2(aq) + 3H2O(l) To write rate expression , first we…

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Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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The progress of the reaction between Iodine ions and potassium iodate(V) can be followed by withstanding samples of the reaction mixture at various times, quenching and then titrating with standard thiosulphate solution. The reaction equation is:

I_(aq)+ IO_3(aq)+ 6H⁺_(aq)+ 4e ➡ I_2(aq) + 3H₂O_(l)

In one such experiment the following data were obtained. (see figure below)

Determine the order of the reaction with respect to I_(aq) and IO_3(aq)ions
Write the rate expression for the reaction.

initial reaction
Inital Concentration (mol dm) of
(aq)
0.019
0.038
Rate/mo! dm³s1
KIO (aq)
0.015
1
3.5 x 106
7.0 x 106
28.0 x 106
0.015
0.038
0.030

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