Waec Model Questions Vol1 2023 Chemistry Question 7
Practice objective / multiple choice question 7 from the 2023 Waec Model Questions Vol1 Chemistry examination.
A buffer solution is prepared by dissolving 0.20 mol of acetic acid (CH₃COOH) and 0.15 mol of sodium acetate (CH₃COONa) in 1.00 L of water. The acid dissociation constant of acetic acid is Ka = 1.8 × 10⁻⁵. If 0.020 mol of HCl is added to the buffer, what is the new pH of the solution?
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This is Waec Model Questions Vol1 2023 Chemistry Question 7. It is one of the objective questions from the 2023 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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