Gce Model Questions Vol1 2022 Chemistry Question 21
Practice objective / multiple choice question 21 from the 2022 Gce Model Questions Vol1 Chemistry examination.
A 1.00 L solution contains 0.250 mol of acetic acid \(\mathrm{CH_3COOH}\) and 0.150 mol of sodium acetate \(\mathrm{CH_3COONa}\). The acid dissociation constant is \(K_a = 1.8 \times 10^{-5}\). (a) Calculate the initial pH of the solution. (b) After adding 0.050 mol of \(\mathrm{HCl}\) to the solution, what is the new pH? Assume the volume change is negligible.
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This is Gce Model Questions Vol1 2022 Chemistry Question 21. It is one of the objective questions from the 2022 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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