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Silver chromate is sparingly soluble in aqueous solutions. the ksp of ag2cro4 is 1.12× 10–12 m3. what is the solubility (in mol/l) of silver chromate

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superman1987

Answer:

6.542 x 10⁻⁵ mol/L.

Explanation:

  • Co(OH)₂ dissociates in solution according to the equation:

Ag₂CrO₄ → 2Ag⁺ + CrO₄²⁻.

∵ Ksp = [Ag⁺]²[CrO₄²⁻] = (2s)²(s) = 4s³.

∴ 4s³ = 1.12 x 10⁻¹².

∴ s³ = 1.12 x 10⁻¹²/4 = 2.80 x 10⁻¹³.

∴ s = ∛(2.80 x 10⁻¹³) = 6.542 x 10⁻⁵ mol/L.

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