For the reaction I (aq) + OCl (aq) OI (aq) + Cl (aq) occurring in aqueous solution,

For the reaction I^ˆ’(aq) + OCl^ˆ’(aq) ‡‹ OI^ˆ’(aq) + Cl^ˆ’(aq) occurring in aqueous solution, the following mechanism has been proposed:

a. Derive the rate law expression for this reaction based on this mechanism.

b. The initial rate of reaction was studied as a function of concentration by Chia and Connick [J. Phys. Chem. 63 (1959), 1518], and the following data were obtained:

Is the predicted rate law expression derived from the mechanism consistent with these data?

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oct (ag) + H,0(I): НОC (аg) + ОН (ag) Г (ад) + НОС1(аg) HOI(ад) + ОН (aд)- HO ( ад) + C1 (аg) Н,О() + ОГ (ад) k, [IJo (M) [OCI" ]o(M) [он 1о (м) Initial Rate (Ms-) 2.0x 10-3 1.5x 10-3 1.00 1.8× 104 4.0 x 10-3 1.5x 10-3 3.0x 10-3 3.6 x 104 1.00 2.0x 10-3 2.00 1.8x 104 4.0 x 10-3 3.0 x 10-3 7.2x 104 1.00