Neco 2019 Chemistry Question 9
Practice objective / multiple choice question 9 from the 2019 Neco Chemistry examination.
A 1.0 L solution contains 0.10 mol each of acetic acid (pK_a = 4.76), benzoic acid (pK_a = 4.20) and propionic acid (pK_a = 4.87). Sodium hydroxide solution of concentration 0.10 M is added until the pH reaches 8.0. Assuming the Henderson-Hasselbalch relationship holds for each acid‑base pair, calculate the volume of NaOH solution required (in litres, to two decimal places).
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About This Question
This is Neco 2019 Chemistry Question 9. It is one of the objective questions from the 2019 Neco Chemistry examination.
Difficulty level: Hard .
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