Neco Model Questions Vol1 2022 Chemistry Question 17

Practice objective / multiple choice question 17 from the 2022 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2022 Chemistry Objective / Multiple Choice Medium Difficulty
Question 17 NECO_MODEL_QUESTIONS_VOL1 • 2022 • CHEMISTRY • objective

A buffer is prepared by mixing 50.0 mL of 0.200 M acetic acid \(\mathrm{CH_3COOH}\) with 30.0 mL of 0.150 M sodium acetate \(\mathrm{CH_3COONa}\). Then 5.00 mL of 0.100 M \(\mathrm{HCl}\) is added. Given \(K_a\) of acetic acid = \(1.8\times10^{-5}\), calculate the pH of the resulting solution.

Answer Options

A. 5.02
Correct Answer B. 4.33
C. 4.55
D. 4.10
Correct Answer
B
Correct Option:
4.33

About This Question

This is Neco Model Questions Vol1 2022 Chemistry Question 17. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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