Neco Model Questions Vol1 2023 Chemistry Question 11
Practice objective / multiple choice question 11 from the 2023 Neco Model Questions Vol1 Chemistry examination.
A 1.00 L aqueous solution contains 0.20 mol of the weak acid HA ( \(K_a = 1.8 \times 10^{-5}\) ) and 0.15 mol of its sodium salt NaA. After adding 0.05 mol of HCl, what is the pH of the solution? Give your answer to two decimal places.
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About This Question
This is Neco Model Questions Vol1 2023 Chemistry Question 11. It is one of the objective questions from the 2023 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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