Waec Model Questions Vol1 2019 Chemistry Question 18
Practice objective / multiple choice question 18 from the 2019 Waec Model Questions Vol1 Chemistry examination.
A buffer solution is prepared by dissolving 0.20 mol of acetic acid (CH₃COOH, K_a = 1.8×10⁻⁵) and 0.15 mol of sodium acetate (CH₃COONa) in 1.0 L of water. Calculate the pH of the buffer. Then, 0.050 mol of HCl is added to the solution (volume change is negligible). Calculate the new pH after the addition.
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About This Question
This is Waec Model Questions Vol1 2019 Chemistry Question 18. It is a objective / multiple choice question from the 2019 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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