Question

In: Chemistry

The molar solubility of silver sulfate in a 0.142 M ammonium sulfate solution is _______ M

The molar solubility of silver sulfate in a 0.142 M ammonium sulfate solution is _______ M

 

Solutions

Expert Solution

The Ksp of silver sulfate is 1.4×10-5

Ag2SO4 = 2Ag+(aq) + SO42-(aq)

0.142 M ammonium sulfate has 0.142 M sulfate

Ksp = [Ag+]2[SO42-]

1.4 x 10-5 = [Ag+]2 x 0.142

[Ag+]2 = 9.85 x 10-5

[Ag+] = 0.0099 M

Since 2 moles of silver is got from each silver sulphate the solubility of silver sulpate in 0.142 M ammonium sulfate is 0.0099/2 = 0.00496 M


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