Answered: If the [S2O32-] is initially 2.49 x…

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter12: Kinetics

Section: Chapter Questions

Problem 52E: When every collision between reactants leads to a reaction, what determines the rate at which the...

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If the [S₂O₃^2-] is initially 2.49 x 10^-4 M, and the reaction takes 170 seconds for the solution to turn blue, what is the rate of the reaction expressed in terms of I₂?

I2 (aq) + 2S2O3^2-(aq) → 2 I–(aq) + S4O6^2-(aq)

Expert Solution

Step 1

Given:

Initial concentration of $S_{2} O_{3}^{2 -}$ = 2.49 x 10^-4 M

Final concentration of $S_{2} O_{3}^{2 -}$ = 0 M

Initial time = 0

Final time = 170 seconds

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