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The Ksp of CaF2 is 4.0 x 10-11. What is the solubility of CaF2 in 0.010 M NaF?

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The Ksp of CaF2 is 4.0 x 10-11. What is the solubility of CaF2 in 0.010 M NaF?

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  1. CaF2 -->  Ca+2 & 2F-

    Ksp = [Ca+2] [F-]^2

    4.0e-11 = [Ca+2] [0.010]^2

    Ca+2 = 4e-7 Molar

    your answer : CaF2 will  have a solubility of 4.0e-7 Molar

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