The deprotonation of acetic acid goes by the mechanism CH3COOH + H2O ⇒ CH3COO– + H3O+ Assume the...

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Chemistry

The deprotonation of acetic acid goes by the mechanism

CH3COOH + H2O ⇒CH3COO– + H3O+

Assume the pKa of acetic acid at 25°C is 4.76, and the forwardrate at a pH of 4 is 102 s–1.

(a) Calculate the forward and reverse rate constants for thereaction.

(b) Calculate the relaxation time if a 10–2 Msolution of solution of acetate in water at pH 6 is subjected to atemperature jump.

(c) Given reasonable estimates for molecular sizes, determine ifthe forward and/or the reverse reactions are likely to be diffusionlimit.

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