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

  • Chemistry - ,

    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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