STANDARD Chemistry Solubility Product MCQ Question
Concentration of the Ag⁺ ions in a saturated solution of Ag₂C₂O₄ is 2.2 × 10⁻⁴ mol L⁻¹. Solubility product of Ag₂C₂O₄ is
2.66 × 10⁻¹²
4.5 × 10⁻¹¹
5.3 × 10⁻¹²
2.42 × 10⁻⁸
Correct Answer
Detailed Explanation
Let solubility of Ag₂C₂O₄ be s mol L⁻¹. Ag₂C₂O₄(s) ⇌ 2Ag⁺(aq) + C₂O₄²⁻(aq). s 2s s. Kₛₚ = (2s)²(s) ⇒ 4s³. Kₛₚ = 4 × (1.1 × 10⁻⁴)³ (∵ [Ag⁺] = 2s = 2.2 × 10⁻⁴). Kₛₚ = 5.3 × 10⁻¹².
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