What is the molar solubility of silver sulfate (Ag₂SO₄)in water? The solubility-product constant for Ag₂SO₄ is 1.5 × 10^-5 at 25°C.

Question

Quizplus · Accepted Answer

We can use the solubility-product constant expression to determine the molar solubility of Ag2SO4:

Ksp = [Ag+]^2[SO4^2-]

Let x be the molar solubility of Ag2SO4. Then:

1.5 × 10^-5 = (2x)^2(x)

1.5 × 10^-5 = 4x^3

x = (1.5 × 10^-5 / 4)^(1/3)

x = 1.6 × 10^-2 M

Therefore, the molar solubility of Ag2SO4 is 1.6 × 10^-2 M.

The closest answer choice is D, 1.6 × 10^-2, so that is our answer.

What Is the Molar Solubility of Silver Sulfate (Ag2SO4)in Water