Neco 2021 Chemistry Question 26

Practice objective / multiple choice question 26 from the 2021 Neco Chemistry examination.

Neco 2021 Chemistry Objective / Multiple Choice Medium Difficulty
Question 26 NECO • 2021 • CHEMISTRY • objective

Solution A is prepared by dissolving 0.010 mol of NaCl in 1.0 L of water. Excess solid AgCl is then added and the mixture is allowed to reach equilibrium at 25\,°C. Given that the solubility product of AgCl is \\(K_{sp}=1.8\\times10^{-10}\\), (a) calculate the equilibrium concentration of \\text{Ag}^{+} ions. (b) If an additional 0.001 mol of NaCl is added to the same volume, what is the new equilibrium concentration of \\text{Ag}^{+} ions? Express your answers in scientific notation (M).

Answer Options

A. 1.9\\times10^{-8}\\,M; 1.70\\times10^{-8}\\,M
B. 2.0\\times10^{-8}\\,M; 1.8\\times10^{-8}\\,M
Correct Answer C. 1.8\times10^{-8}\,M; 1.64\times10^{-8}\,M
D. 1.8\\times10^{-9}\\,M; 1.64\\times10^{-9}\\,M
Correct Answer
C
Correct Option:
1.8\times10^{-8}\,M; 1.64\times10^{-8}\,M

About This Question

This is Neco 2021 Chemistry Question 26. It is one of the objective questions from the 2021 Neco Chemistry examination.

Difficulty level: Medium .

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