Neco Model Questions Vol1 2020 Chemistry Question 42

Practice objective / multiple choice question 42 from the 2020 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2020 Chemistry Objective / Multiple Choice Medium Difficulty
Question 42 NECO_MODEL_QUESTIONS_VOL1 • 2020 • CHEMISTRY • objective

At 25 °C the solubility product of silver chloride is \( K_{sp}=1.8\times10^{-10} \). A solution is prepared by dissolving 0.010 mol of NaCl in 1.0 L of water, after which excess solid AgCl is added. (a) Calculate the solubility of AgCl in this solution (in mol L\( ^{-1} \)). (b) If the entire solution is then diluted to 2.0 L, what is the new solubility of AgCl under the same temperature?

Answer Options

A. Initial solubility \(1.8\times10^{-9}\,\text{mol L}^{-1}\); after dilution \(3.6\times10^{-9}\,\text{mol L}^{-1}\)
Correct Answer B. Initial solubility \(1.8\times10^{-8}\,\text{mol L}^{-1}\); after dilution \(3.6\times10^{-8}\,\text{mol L}^{-1}\)
C. Initial solubility \(1.2\times10^{-8}\,\text{mol L}^{-1}\); after dilution \(2.4\times10^{-8}\,\text{mol L}^{-1}\)
D. Initial solubility \(2.0\times10^{-8}\,\text{mol L}^{-1}\); after dilution \(4.0\times10^{-8}\,\text{mol L}^{-1}\)
Correct Answer
B
Correct Option:
Initial solubility \(1.8\times10^{-8}\,\text{mol L}^{-1}\); after dilution \(3.6\times10^{-8}\,\text{mol L}^{-1}\)

About This Question

This is Neco Model Questions Vol1 2020 Chemistry Question 42. It is one of the objective questions from the 2020 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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