Waec Model Questions Vol1 2021 Chemistry Question 41
Practice objective / multiple choice question 41 from the 2021 Waec Model Questions Vol1 Chemistry examination.
A buffer solution is prepared by mixing 0.500 mol of acetic acid (CH₃COOH, Ka = 1.8 × 10⁻⁵) with its sodium salt. The initial pH of the solution is 4.74. If 0.020 mol of HCl is added to the buffer, what is the new pH of the solution? Give your answer to two decimal places.
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About This Question
This is Waec Model Questions Vol1 2021 Chemistry Question 41. It is one of the objective questions from the 2021 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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