To what reaction does the solubility product constant, Ksp, refer? Table 15.1 lists K_sp values for several ionic solids. For any of these ionic compounds, you should be able to calculate the solubility. What is the solubility of a salt, and what procedures do you follow to calculate the solubility of a salt? How would you calculate the K_sp value for a salt given the solubility?

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TABLE 15.1 Ksp Values at 25°C for Common Ionic Solids Ionic Solid Ksp (at 25°C) Fluorides BaF₂ MgF₂ PbF₂ SrF₂ CaF₂ Chlorides PbCl₂ AgCl Hg₂Cl₂* Bromides PbBr₂ AgBr Hg₂Br₂* lodides Pbl₂ Agl Hg₂l₂* Sulfates CaSO4 Ag₂SO4 SrSO4 PbSO4 BaSO4 Chromates SrCrO4 2.4 x 10-5 6.4 x 10-9 4 X 10-8 7.9 X 10-10 4.0 X 10-11 1.6 X 10-5 1.6 X 10-10 1.1 X 10-18 4.6 x 10-6 5.0 X 10-13 1.3 x 10-22 1.4 x 10-8 1.5 X 10-16 4.5 X 10-2⁹ 6.1 x 10-5 1.2 x 10-5 3.2 x 10-7 1.3 X 10-8 1.5 X 10-9 3.6 x 10-5 Ionic Solid Hg₂CrO,* BaCrO4 Ag₂ CrO4 PbCrO4 Carbonates NICO, CaCO3 BaCO3 SrCO CUCO3 ZnCO₂ MnCO₂ FeCO3 Ag₂CO3 CdCO PbCO3 MgCO3 Hg₂CO,* Hydroxides Ba(OH)2 Sr(OH)2 Ca(OH)2 AgOH Mg(OH)2 Mn(OH)₂ Cd(OH)₂ Pb(OH)2 Fe(OH)₂ Ksp (at 25°C) 2 x 10-⁹ 8.5 X 10-11 9.0 X 10-12 2 X 10-16 1.4 x 10-7 8.7 X 10 -9 1.6 × 10-9 7 x 10-10 2.5 X 10-10 2 x 10-10 8.8 x 10-11 2.1 X 10-11 8.1 X 10-12 5.2 x 10-12 1.5 X 10-15 6.8 x 10-6 9.0 X 10-15 5.0 × 10-³ 3.2 x 10-4 1.3 x 10-6 2.0 × 10-8 8.9 X 10-12 2x 10-13 5.9 X 10-15 1.2 X 10-15 1.8 X 10-15 Ionic Solid Co(OH)2 Ni(OH)2 Zn(OH)₂ Cu(OH)₂ Hg(OH)2 Sn(OH)2 Cr(OH)3 Al(OH)3 Fe(OH)3 Co(OH)3 Sulfides MnS FeS NIS COS ZnS SnS CdS PbS CuS Ag₂S HgS Phosphates Ag3PO4 Sr3(PO4)2 Ca3(PO4)2 Ba3(PO4)2 Pb3(PO4)2 Ksp (at 25°C) 2.5 X 10-16 1.6 X 10-16 4.5 X 10-1 1.6 X 10-19 3 x 10-26 3 x 10-27 6.7 X 10-31 2 x 10-32 4 X 10-38 2.5 X 10-43 2.3 X 10-13 3.7 X 10-19 3 x 10-21 5 x 10-22 2.5 x 10-22 1 X 10-26 1.0 X 10-28 7 x 10-29 8.5 x 10-45 1.6 X 10-49 1.6 x 10-54 1.8 X 10-18 1 X 10-31 1.3 x 10-32 6 x 10-39 1 x 10-54