Answer :
The solubility of silver chromate, ag2cro4, is 1.0 x 10-4moles per liter, then the solubility product constant, Ksp, for silver chromate will be 2.048 × 10⁻¹².
The solubility product constant is the equilibrium constant for the dissolution of a solid substance into an aqueous solution.
It is the product of the concentration of the ions that exist in equilibrium with the solid compound in a saturated solution.
⇒ Ag₂CrO₄ ⇄ 2Ag⁺ + CrO₄²⁻
⇒ Ksp (Ag₂CrO₄) = [Ag⁺]²[CrO₄]²⁻
⇒ [2S]²[S]
⇒ 4S³
⇒ 4 × (8.0 × 10⁻⁵)³
Ksp = 2.048 × 10⁻¹².
Hence, Ksp for K₂CrO₄ at 25° C will be 2.048 × 10⁻¹².
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