Gce Model Questions Vol1 2025 Chemistry Question 43
Practice objective / multiple choice question 43 from the 2025 Gce Model Questions Vol1 Chemistry examination.
A buffer solution contains \(0.500\ \text{mol}\) acetic acid (\(\text{CH}_3\text{COOH}\)) and \(0.300\ \text{mol}\) sodium acetate (\(\text{CH}_3\text{COONa}\)) in a total volume of \(1.00\ \text{L}\). The \(pK_a\) of acetic acid is \(4.76\). How many moles of solid NaOH must be added to raise the pH of the solution by exactly \(0.40\) units? Give your answer to three significant figures.
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This is Gce Model Questions Vol1 2025 Chemistry Question 43. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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