AP Chemistry: Ksp Review
1) The solubility of CuI(s) in water is 2.3 x 10-6 mol/L. Calculate the Ksp for CuI(s).
2) The solubility of PbI2(s) is 1.2 x 10-3 mol/L. Calculate the Ksp for PbI2(s).
3) The Ksp for SrF2(s) is 2.8 x 10-9. Calculate the solubility of SrF2.
4) The solubility of Ca3(PO4)2(s) is 6.3 x 10-7 mol/L. Calculate the Ksp value for
Ca3(PO4)2(s).
5) The Ksp for AgBr(s) is 7.7 x 10-13. Calculate the solubility of AgBr(s) in
a) Pure water.
b) 1.0 x 10-2 M NaBr solution.
6) A solution is saturated with BaSO4(s). The [Ba2+] in this solution is 1.0 x 10-5 M.
Calculate the value of Ksp for BaSO4(s)
7) The Ksp for Pb3(PO4)2 is 1.0 x 10-42. Calculate the solubility of Pb3(PO4)2(s) in
a) Pure water
b) 0.100 M Pb(NO3)2.
8) Calculate the solubility of Co(OH)2(s) (Ksp = 5.2 x 10-15) in a solution with a pH of
11.00.
9) For each of the following pairs of solids, determine which solid is least soluble.
a) CaF2(s) (Ksp = 4.0 x 10-11) or BaF2(s) (Ksp =1.1 x 10-6)
b) Ca3(PO4)2(s) (Ksp = 1.0 x 10-29) or FePO4(s) (Ksp = 1.0 x 10-22)
10) A solution contains 1.0 x 10-5 M Ag+ and 2.0 x 10-6 M CN-. Will AgCN(s) precipitate?
(Ksp for AgCN(s) is 2.2 x 10-12)
11) A solution contains 2.0 x 10-3 M Ce3+ and 1.0 x 10-2 M IO3-. Will Ce(IO3)3(s)
precipitate? (the Ksp for Ce(IO3)3 is 3.2 x 10-10)
12) A solution contains 1.0 x 10-8 M Co2+. At what [S2-] will precipitation of CoS(s)
begin? (Ksp = 7.0 x 10-23)
13) A solution is prepared by mixing 50.0 mL of 1.0 x 10-3 M Ca(NO3)2 and 50.0 mL of
1.0 x 10-2 M Na2SO4. Will CaSO4(s) (Ksp = 6.1 x 10-5) precipitate?
14) A solution is prepared by mixing 75.0 mL of 1.0 x 10-3 M CuNO3 and 150.0 mL of
1.0 x 10-3 M NaCl. Will CuCl(s) (Ksp = 1.8 x 10-7) precipitate?
15) A solution is prepared by mixing 100.0 mL of 1.0 x 10-2 M Pb(NO3)2 and 100.0 mL
of 1.0 x 10-3 M NaF. Will PbF2(s) (Ksp = 3.7 x 10-8) precipitate?
16) A solution contains 1.0 x 10-5 M PO43-. What is the minimum concentration of Ag+
that would cause precipitation of Ag3PO4(s)? (Ksp= 1.8 x 10-18)
17) The solubility of Pb(IO3)2(s) in a 0.10 M KIO3 solution is 2.6 x 10-11 mol/L. Calculate
the Ksp for Pb(IO3)2(s).