Calculate Qsp for CaF2

Mar 30th, 2015
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This is a problem on finding the Qsp of CaF2 that is formed by the double displacement reaction of Ca(NO3)2 and KF.

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2KF + Ca(NO3)2 -> CaF2 + 2KNO3Number of moles of Ca(NO3)2 = C*V = 0.00645 (mols/L)* 0.140 L = 0.000903 molesNumber of moles of KF = C*V = 0.00600 (mols/L)* 0.165 L = 0.00099 moles1 mole of Ca(NO3)2 produces 1 mole of Ca2+ ions.So [Ca2+] = 0.000903 moles/0.305 L = 0.00296 M1 mole of KF produ

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