You want to test the following proposed mechanism for the oxidation of HBr. You find that the

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You want to test the following proposed mechanism for the oxidation of HBr.

HBr + O HOOBr + HBr HOBr + HBr k k k3 HOOBr 2 HOBr HO + Br

You find that the rate is first order with respect to HBr and to O2. You cannot detect HOBr among the products.

(a) If the proposed mechanism is correct, which must be the rate-determining step?

(b) Can you prove the mechanism from these observations?

(c) Can you disprove the mechanism from these observations?

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General Chemistry Principles And Modern Applications

ISBN: 9780132931281

11th Edition

Authors: Ralph Petrucci, Jeffry Madura, F. Herring, Carey Bissonnette

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