Question

What is the molar solubility of Ag2SO4 at 25°C based upon the following information? Data was collected at 25°C. Ag2SO4(s) \Longleftrightarrow 2 Ag+(aq) + SO42-(aq)

Answer 1

Ag2SO4(s) -----------------> 2 Ag+(aq) + SO42-(aq)

for this reaction, we have to know the Ksp of Ag2SO4

which is 1.4 x 10^-5

and we know that

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

= ( 2s)^2 x s

therefore

4 S^3 = 1.4 x 10^-5

S^3 = 3.5 X 10^-6

S = 1.52 X 10^-2

S = 0.0152 M

therefore molar solubility of Ag2SO4 at 25degree celcius is 0.0152M