The initial rate of hydrolysis of methyl acetate (1.0 M) by a weak acid (HA, 1.0 M) is 1/100th of th — Chemical Kinetics Chemistry Question

💡 Solution & Explanation

Rate is proportional to [H+]. [H+] from HA / [H+] from HX = 1/100. Since HX is a strong acid, [H+] = 1.0 M, so [H+] from HA = 0.01 M. For a weak acid, [H+]^2 = Ka × C => (0.01)^2 = Ka × 1.0 => Ka = 10^-4. Therefore, correct answer is A.