Post Utme Bells University 2023 Chemistry Question 1

Practice objective / multiple choice question 1 from the 2023 Post Utme Bells University Chemistry examination.

Post Utme Bells University 2023 Chemistry Objective / Multiple Choice
Question 1 POST_UTME_BELLS_UNIVERSITY • 2023 • CHEMISTRY • objective

Determine the solubility of $\text{CaF}_2$ in a solution containing $0.1\,\text{M}$ $\text{HF}$ at $25\,\text{°C}$, given that $K_{sp} = 3.9\times 10^{-11}$ and $K_{f} = 3.5\times 10^{-3}$ for $\text{HF}$.

Answer Options

A. $1.2\times 10^{-4}\,\text{M}$
Correct Answer B. $2.5\times 10^{-4}\,\text{M}$
C. $4.8\times 10^{-4}\,\text{M}$
D. $6.2\times 10^{-4}\,\text{M}$
Correct Answer
B
Correct Option:
$2.5\times 10^{-4}\,\text{M}$

About This Question

This is Post Utme Bells University 2023 Chemistry Question 1. It is one of the objective questions from the 2023 Post Utme Bells University Chemistry examination.

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