The solubility of silver chromate is 0.0287 g/1.0 L of solution. What is the K_sp for Ag₂CrO₄?

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Quizplus · Accepted Answer

The molar mass of Ag₂CrO₄ is approximately 331.73 g/mol. The molarity of the solution is 0.0287 g/L ÷ 331.73 g/mol = 8.65 * 10⁻⁵ M. The dissolution of Ag₂CrO₄ can be represented as Ag₂CrO₄ ⇌ 2Ag⁺ + CrO₄²⁻. Therefore, [Ag⁺] = 2 * 8.65 * 10⁻⁵ M and [CrO₄²⁻] = 8.65 * 10⁻⁵ M. The Ksp = [Ag⁺]²[CrO₄²⁻] = (2 * 8.65 * 10⁻⁵)² * 8.65 * 10⁻⁵ = 2.6 * 10⁻¹².

The Solubility of Silver Chromate Is 0