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Q1Ksp(CaF2)=3.9*10-11. What is the concentration of [F-] in equilibrium with solid CaF2? 0.00043m, 0.00027m, 0.00054m, 0.0021m Q2The Ksp...

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Chemistry

Q1Ksp(CaF2)=3.9*10-11. What is the concentration of [F-] inequilibrium with solid CaF2?

0.00043m, 0.00027m, 0.00054m, 0.0021m

Q2The Ksp of silver acetate (Ag(H3C2O2)) is 2.0*10-3. What isthe concentration of Ag+ in equilibrium with solid silver acetatein a solution that also contains 1.0M sodium acetate? Answer inmolarity (M).

Do NOT use scientific notation!

Answer & Explanation Solved by verified expert
4.5 Ratings (969 Votes)

   CaF2 --------> Ca+2 + 2F-

                           s        2s

Ksp     = [Ca+2][F-]2

              = s*(2s)2

              = 4s3

3.9*10-11 = 4s3

s3            = 9.75*10-12

s               = 2.136*10-4 M

[F-]         = 2*s = 2*2.136*10-4

[F-]      = 0.00043M

Q2    (Ag(H3C2O2)) -------> Ag+ + H3C2O2-

      Ksp = [ Ag+][ H3C2O2-]

   2*10-3   =[Ag+] 0.1

[Ag+]   = 2*10-2    M = 0.02M
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