Gce Model Questions Vol1 2025 Chemistry Question 12
Practice objective / multiple choice question 12 from the 2025 Gce Model Questions Vol1 Chemistry examination.
A buffer solution is prepared by dissolving 2.00 g of benzoic acid \(\mathrm{C_{6}H_{5}COOH}\) (\(pK_{a}=4.20\)) and 2.94 g of sodium benzoate \(\mathrm{NaC_{6}H_{5}COO}\) in 500 mL of water. Then 25.0 mL of 0.200 M NaOH is added. Assuming the volume change is negligible, calculate the pH of the solution after the addition of NaOH.
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This is Gce Model Questions Vol1 2025 Chemistry Question 12. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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