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The initial rate of hydrolysis of methyl acetate (1 M) by a weak acid (HA, 1M) is 1/100th of that of a strong acid (HX, 1M), at 25oC. The Ka of HA is ?

The initial rate of hydrolysis of methyl acetate (1 M) by a weak acid (HA, 1M) is 1/100th of that of a strong acid (HX, 1M), at 25oC. The Ka of HA is ?

Grade:11

2 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
576-2418_c.PNG
Vikas TU
14149 Points
one year ago
Rate in weak acid = 1/100 ( rate in strong acid)
∴[H+]weakacid = 1/100 = [H+]strongacid
∴[H+]weakacid = 1/100M =10^−2 M
∴Cα=10^−2
∴Ka=10^−4

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