Neco 2018 Chemistry Question 20

Practice objective / multiple choice question 20 from the 2018 Neco Chemistry examination.

Neco 2018 Chemistry Objective / Multiple Choice Medium Difficulty
Question 20 NECO • 2018 • CHEMISTRY • objective

The solubility product of silver chloride at 25°C is \(K_{sp}=1.8\times10^{-10}\). In a solution that already contains 0.010 M NaCl, calculate the solubility of AgCl (in mol·L\(^{-1}\)). Then, if 0.20 g of solid AgCl is added to 250.0 mL of this solution, determine whether any solid remains undissolved.

Answer Options

A. Solubility = 1.8×10^{-6} mol·L^{-1}; excess solid remains
Correct Answer B. Solubility = 1.8×10^{-8} mol·L^{-1}; excess solid remains
C. Solubility = 9.0×10^{-9} mol·L^{-1}; all solid dissolves
D. Solubility = 1.3×10^{-5} mol·L^{-1}; all solid dissolves
Correct Answer
B
Correct Option:
Solubility = 1.8×10^{-8} mol·L^{-1}; excess solid remains

About This Question

This is Neco 2018 Chemistry Question 20. It is one of the objective questions from the 2018 Neco Chemistry examination.

Difficulty level: Medium .

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