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A saturated solution, prepared by dissolving CaF_2(s) in water, has [Ca^(2+)]=3.3 times 10^-4 M. What is the K_(sp) of CaF_2? |
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Answer» Solution :`CaF)_2(s)=Ca^(2+) (aq)+2F^(-) (aq)` `[F^-]=2[Ca^(2+)]=2 times3.3 times10^-4M` `=6.6 times10^-4M` `K_(sp)=[Ca^(2+)][F^-]^2` `=(3.3 times10^-4)(6.6 times10^-4)^2` `=1.44 TIMES 10^-10` |
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