Answered: The kinetics of the reaction: I⁻ + OCl⁻…

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 kinetics of the reaction: I⁻ + OCl⁻ ⇄ OI⁻ + Cl⁻ was studied in basic aqueous media by Chia and Connick . The initial rate of I⁻ disappearance is given below for mixtures of various initial compositions, at 25°C (None of the solutions initially contained OI⁻ or Cl⁻ ).

If the mechanism of the reaction is given below, which constants below play role in the reaction rate law: OCl⁻ + H₂O ⇄ HOCl + OH⁻ (rate constant=k₁, equil.const=K₁)---fast, equilibrium I⁻ + HOCl → HOI + Cl⁻ (rateconstant=k₂)---slow HOI + OH⁻ ⇄ H₂O + OI⁻ (rate constant=k₃, equil.const=K₂)---fast, equilibrium

Initial
Initial
Initial
Initial rate
composition
of I- (M)
2 × 10–3
composition composition of (moll-L-1s-1)
of OCI- (M)
OH- (M)
1.5 x 10-3
1.00
1.8 × 10-4
4 x 10-3
1.5 × 10-3
1.00
3.6 × 10-4
2 × 10-3
3 × 10-3
2.00
1.8 X 10-4
4 x 10-3
3 x 10-3
1.00
7.2 × 10¬4

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