Be sure to answer all parts. The reaction of peroxydisulfate ion (S2O82−) with iodide ion (I−) is S2O82−(aq) + 3I−(aq) → 2SO42−(aq) + I3−(aq)From the following data collected at a certain temperature, determine the rate law and calculate the rate constant. Experiment[S2O82−](M)[I−](M)Initial Rate [M/s]10.02000.04004.80 × 10−420.02000.02002.40 × 10−430.04000.02004.80 × 10−4(a) Which of the following equations represents the rate law for this reaction? A. rate = k[S2O82−][I−] C. rate = k[S2O82−][I−]2B. rate = k[S2O82−]2[I−] D. rate = k[S2O82−]2[I−]2 A B C D(b) What is the rate constant for the reaction? k = /M·s

The reaction of peroxydisulfate ion (S2O82−) with iodide ion (I−) is S2O82−(aq) + 3I−(aq) →…

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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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Be sure to answer all parts.

The reaction of peroxydisulfate ion

(S₂O₈²⁻) with iodide ion (I⁻) is

S₂O₈²⁻(aq) + 3I⁻(aq)

→

2SO₄²⁻(aq) + I₃⁻(aq)

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

Experiment	[S₂O₈²⁻](M)	[I⁻](M)	Initial Rate [M/s]
1	0.0200	0.0400	4.80 × 10⁻⁴
2	0.0200	0.0200	2.40 × 10⁻⁴
3	0.0400	0.0200	4.80 × 10⁻⁴

(a) Which of the following equations represents the rate law for this reaction?

A. rate = k[S₂O₈²⁻][I⁻]		C. rate = k[S₂O₈²⁻][I⁻]²
B. rate = k[S₂O₈²⁻]²[I⁻]		D. rate = k[S₂O₈²⁻]²[I⁻]²

(b) What is the rate constant for the reaction?

k =

/M·s

Expert Solution

Step 1

The reaction of peroxydisulfate ion

(S₂O₈²⁻) with iodide ion (I⁻) is

S₂O₈²⁻(aq) + 3I⁻(aq)

→

2SO₄²⁻(aq) + I₃⁻(aq)

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

To determine the rate law and the rate constant at first we should find order order of reaction.

The order of a chemical reaction is defined as the sum of the powers of the concentration of the reactants in the rate equation of that particular chemical reaction.

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