Homework Help: Chemistry

Posted by Mousa on Thursday, July 5, 2012 at 8:38am.

The osmotic pressure (T=25°C) of a saturated solution of CaC03 is 0.0179 atm. Determine the solubility product of the salt

Chemistry - DrBob222, Thursday, July 5, 2012 at 1:15pm
pi = MRT
You know pi, R, T, solve for M = mols/L
CaCO3 ==> Ca^2+ + CO3^2-
Ksp = (Ca^2+)(CO3^2-)
Substitute into Ksp expression and solve for Ksp. This answer doesn't agree with the tabular value in my text.

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