Question

What is the Ksp expression for the dissociation of calcium oxalate?Immersive Reader

(4 Points)

Ksp=[Ca⁺²] x [C₂O₄⁻²]

Ksp=[Ca⁺²]² x [C₂O₄⁻²]

Ksp=[Ca⁺²]⁴ x [C₂O₄⁻²]

Ksp=[Ca⁺²] x [C₂O₄⁻²]²

Answer 1

Ksp = [Ca⁺²] × [C₂O₄⁻²]

Step-by-step explanation:

Step 1: Write the balanced reaction for the dissociation of calcium oxalate

CaC₂O₄(s) ⇄ Ca⁺²(aq) + C₂O₄⁻²(aq)

Step 2: Write the expression for the solubility product constant (Ksp) of calcium oxalate

The solubility product constant is the equilibrium constant for the dissociation reaction, that is, it is equal to the product of the concentrations of the products raised to their stoichiometric coefficients divided by the product of the concentrations of the reactants raised to their stoichiometric coefficients. It doesn't include solids nor pure liquids because their activities are 1.

Ksp = [Ca⁺²] × [C₂O₄⁻²]