Neco Model Questions Vol1 2025 Chemistry Question 37
Practice objective / multiple choice question 37 from the 2025 Neco Model Questions Vol1 Chemistry examination.
A buffer solution is prepared by dissolving 0.250 mol of acetic acid (\(\mathrm{CH_3COOH}\)) and 0.150 mol of sodium acetate (\(\mathrm{CH_3COONa}\)) in 1.00 L of water. The acid dissociation constant is \(K_a = 1.8\times10^{-5}\). After adding 0.050 mol of HCl, solid NaOH is added to restore the original pH. How many grams of NaOH are required? (Molar mass of NaOH = 40.0 g mol\(^{-1}\)).
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About This Question
This is Neco Model Questions Vol1 2025 Chemistry Question 37. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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