Neco Model Questions Vol1 2021 Chemistry Question 23
Practice objective / multiple choice question 23 from the 2021 Neco Model Questions Vol1 Chemistry examination.
A buffer solution is prepared by dissolving \(0.250\ \text{mol}\) of acetic acid (\( \mathrm{CH_3COOH} \)) and \(0.150\ \text{mol}\) of sodium acetate (\( \mathrm{CH_3COONa} \)) in \(1.00\ \text{L}\) of water. The acid dissociation constant of acetic acid is \( K_a = 1.8 \times 10^{-5} \). (a) Calculate the pH of the buffer. (b) If \(0.100\ \text{mol}\) of NaOH is added to the solution, what is the new pH?
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This is Neco Model Questions Vol1 2021 Chemistry Question 23. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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