Gce Model Questions Vol1 2024 Chemistry Question 10

Practice objective / multiple choice question 10 from the 2024 Gce Model Questions Vol1 Chemistry examination.

Gce Model Questions Vol1 2024 Chemistry Objective / Multiple Choice Medium Difficulty
Question 10 GCE_MODEL_QUESTIONS_VOL1 • 2024 • CHEMISTRY • objective

Silver chloride (\(AgCl\)) has a solubility product \(K_{sp}=1.8\times10^{-10}\) at \(25\ ^\circ\text{C}\). (a) Calculate its molar solubility in pure water. (b) In a solution that already contains \(0.010\ \text{M}\) NaCl, determine the solubility of \(AgCl\). (c) If the chloride concentration is increased to \(0.050\ \text{M}\) (for example by adding HCl), what is the new solubility? (d) Explain qualitatively how adding a soluble salt that provides a common cation (e.g., \(AgNO_3\)) would affect the solubility of \(AgCl\).

Answer Options

A. (a) 2.00×10⁻⁵ M; (b) 9.0×10⁻⁹ M; (c) 1.8×10⁻⁹ M; (d) solubility increases due to the common‑ion effect.
Correct Answer B. (a) 1.34×10⁻⁵ M; (b) 1.8×10⁻⁸ M; (c) 3.6×10⁻⁹ M; (d) solubility decreases due to the common‑ion effect.
C. (a) 1.00×10⁻⁵ M; (b) 3.6×10⁻⁸ M; (c) 7.2×10⁻⁹ M; (d) solubility remains the same because the common ion has no effect.
D. (a) 1.34×10⁻⁴ M; (b) 1.8×10⁻⁶ M; (c) 3.6×10⁻⁷ M; (d) solubility decreases because adding Ag⁺ shifts equilibrium to the left.
Correct Answer
B
Correct Option:
(a) 1.34×10⁻⁵ M; (b) 1.8×10⁻⁸ M; (c) 3.6×10⁻⁹ M; (d) solubility decreases due to the common‑ion effect.

About This Question

This is Gce Model Questions Vol1 2024 Chemistry Question 10. It is one of the objective questions from the 2024 Gce Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

View More Gce Model Questions Vol1 2024 Chemistry Questions More Gce Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support