Question

Select the correct solubility product (Ksp)

expression for SrSO4
a) Ksp =256x6
b) Ksp =4x3
c) Ksp = x2
d) Ksp = 2x

Answer 1

The correct solubility product (Ksp) expression for SrSO4 is c) Ksp = x². The solubility product expression is a way to represent the equilibrium involving a sparingly soluble salt, like SrSO4.

Step-by-step explanation:

The correct solubility product (Ksp) expression for SrSO4 is c) Ksp = x². The solubility product expression is a way to represent the equilibrium involving a sparingly soluble salt, like SrSO4. In this case, the expression would be Ksp = [Sr²+][SO₄²-], and since both ions have a 1:1 stoichiometry, the expression simplifies to Ksp = x², where x represents the molar solubility of SrSO₄.

Answer 2

The correct solubility product expression for SrSO4 is Ksp = x^2, where x represents the molar solubility of SrSO4.

Step-by-step explanation:

The correct solubility product (Ksp) expression for SrSO4 is based on the dissociation of the compound in water:

SrSO4 → Sr2+ + SO42-

At equilibrium, if x represents the molar solubility of SrSO4, then [Sr2+] = x and [SO42-] = x as well because the stoichiometry of the dissociation is 1:1. The Ksp expression is the product of these concentrations:

Ksp = [Sr2+][SO42-] = x * x = x2

Therefore, the correct answer is c) Ksp = x2.