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    Calcium sulfate is sometimes added to wine both to clarity and to percipitate dissolved lead. Given the following Ksp values, what [Pb^2+] remains in wine that is saturated with CaSO4? (Ksp CaSO4=9.1*10^-6, Ksp PbSO4= 1.6*10^-8)

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    Ionic compounds normally dissociate into their constituent ions when they dissolve in water. For example, for calcium sulfate:

    The equilibrium expression is:

    where K is called the equilibrium (or ...

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