A saturated solution of silver chromate has a concentration of 7.4 × 10^-5M. What is the Ksp of this compound?

Question

Quizplus · Accepted Answer

The dissolution of silver chromate (Ag2CrO4) in water can be represented as: Ag2CrO4 ⇌ 2Ag⁺ + CrO4²⁻. The Ksp expression is [Ag⁺]²[CrO4²⁻]. If the concentration of CrO4²⁻ is 7.4 × 10⁻⁵ M, then [Ag⁺] = 2 × 7.4 × 10⁻⁵ M. Therefore, Ksp = (2 × 7.4 × 10⁻⁵)² × (7.4 × 10⁻⁵) = 4(7.4 × 10⁻⁵)³.

A Saturated Solution of Silver Chromate Has a Concentration of 7.4