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Jade
Jade asked in Science & MathematicsChemistry · 5 days ago

whats the F^- required to just begin the precipitation of CdF_2?

For CdF_2(s)<-->Cd^2+(aq)+2F^-(aq), the value of Ksp=1.1e-18. If Cd^2+=.010M. What's the F^- required to just begin the precipitation of CdF_2?

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  • hcbiochem
    Lv 7
    5 days ago

    Ksp = 1.1X10^-18 = [Cd2+][F-]^2

    1.1X10^-18 = (0.010) [F-]^2

    [F-] = 1.05X10^-8 M

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