Waec Model Questions Vol1 2024 Chemistry Question 32

Practice objective / multiple choice question 32 from the 2024 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2024 Chemistry Objective / Multiple Choice Medium Difficulty
Question 32 WAEC_MODEL_QUESTIONS_VOL1 • 2024 • CHEMISTRY • objective

A 25.0 mL sample of a 0.150 M solution of a monoprotic weak acid (Kₐ = 1.8×10⁻⁵) is titrated with 0.100 M NaOH. Calculate the pH of the solution after 20.0 mL of NaOH has been added.

Answer Options

A. 5.10
Correct Answer B. 4.80
C. 4.20
D. 4.55
Correct Answer
B
Correct Option:
4.80

About This Question

This is Waec Model Questions Vol1 2024 Chemistry Question 32. It is one of the objective questions from the 2024 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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