The following initial rate data are for the oxidation of arsenate ion by cerium(IV) ion in aqueous solution:As033 + 2 Ce4+ + H20→AS043- + 2 Ce3+ + 2 H+Experiment[AsO33 ]o, M[Ce**]o, MInitial Rate, M s111.14x10-20,5141.71x10-322.28×10-20.5143.42x10-331.14x10-21.036.87x10-342.28×10-21.031.37x10-2Complete the rate law for this reaction in the box below.Use the form k[A]m[B]n , where '1' is understood for m or n and concentrations taken to the zero power do not appear. Don't enter 1 for m or n.Rate =From these data, the rate constant isM-25-1.

AsO33- + 2Ce4+ + H2O -----> AsO43- + 2Ce3+ + 2H+

AsO33- + 2 Ce4+ + H20AS043- + 2 Ce3+ + 2 H+ Experiment [As033 lo, M [Ce*+lo, M Initial Rate, Ms1 1 1.14x10-2 0.514 1.71x10-3 2 2.28x10-2 0.514 3.42x10-3 3 1.14x10-2 1.03 6.87x10-3 4 2.28x10-2 1.03 1.37x10-2

AsO33- + 2 Ce4+ + H20AS043- + 2 Ce3+ + 2 H+ Experiment [As033 lo, M [Ce*+lo, M Initial Rate, Ms1 1 1.14x10-2 0.514 1.71x10-3 2 2.28x10-2 0.514 3.42x10-3 3 1.14x10-2 1.03 6.87x10-3 4 2.28x10-2 1.03 1.37x10-2

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter11: Chemical Kinetics

Section: Chapter Questions

Problem 11.33PAE: The following experimental data were obtained for the reaction of \'I14* and NOf in acidic solution....

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Question

The following initial rate data are for the oxidation of arsenate ion by cerium(IV) ion in aqueous solution:
As033 + 2 Ce4+ + H20→AS043- + 2 Ce3+ + 2 H+
Experiment
[AsO33 ]o, M
[Ce**]o, M
Initial Rate, M s1
1
1.14x10-2
0,514
1.71x10-3
2
2.28×10-2
0.514
3.42x10-3
3
1.14x10-2
1.03
6.87x10-3
4
2.28×10-2
1.03
1.37x10-2
Complete the rate law for this reaction in the box below.
Use the form k[A]m[B]n , where '1' is understood for m or n and concentrations taken to the zero power do not appear. Don't enter 1 for m or n.
Rate =
From these data, the rate constant is
M-25-1.

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