Waec Model Questions Vol1 2025 Chemistry Question 23

Practice objective / multiple choice question 23 from the 2025 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2025 Chemistry Objective / Multiple Choice Medium Difficulty
Question 23 WAEC_MODEL_QUESTIONS_VOL1 • 2025 • CHEMISTRY • objective

A buffer solution is prepared by mixing 0.250 mol of acetic acid (CH₃COOH, Ka = 1.8×10⁻⁵) with 0.150 mol of sodium acetate (CH₃COONa) in 1.00 L of water. Calculate the pH of the buffer.

Answer Options

Correct Answer A. 4.52
B. 4.12
C. 5.02
D. 3.98
Correct Answer
A
Correct Option:
4.52

About This Question

This is Waec Model Questions Vol1 2025 Chemistry Question 23. It is a objective / multiple choice question from the 2025 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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