1. Chapter 18 Part 2 Solubility and Complexation Equilibria

2. Temperature Dependence of Molar Solubility

4. Rationale’s for Insolubility

5. Solubility Product Constant Data Solubility Product Constants for Some Inorganic Compounds at 25  C SubstanceK SP SubstanceK SP Aluminum compounds Lead compounds AlAsO 4 1.6  10 –16 Pb 3 (AsO 4 ) 2 4.1 x 10 –36 Al(OH) 3 1.9 x 10 –33 PbBr 2 6.3 x 10 –6 AlPO 4 1.3 x 10 –20 PbCO 3 1.5 x 10 –13 Antimony compounds PbCl 2 1.7 x 10 –5 Sb 2 S 3 1.6 x 10 –93 PbCrO 4 1.8 x 10 –14 Barium compounds PbF 2 3.7 x 10 –8 Ba 3 (AsO 4 ) 2 1.1 x 10 –13 Pb(OH) 2 2.8 x 10 –16 BaCO 3 8.1 x 10 –9 PbI 2 8.7 x 10 –9 BaC 2 O 4 ·2H 2 O*1.1 x 10 –7 Pb 3 (PO 4 ) 2 3.0 x 10 –44 BaCrO 4 2.0 x 10 –10 PbSeO 4.5 x 10 –7 BaF 2 1.7 x 10 –6 PbSO 4 1.8 x 10 –8 Ba(OH) 2 ·8H 2 O*5.0 x 10 –3 PbS8.4 x 10 –28

6. Examples of Precipitation Reactions

7. The Solubility Curve 0.1 M [Cl - ]

8. Strong complexes can solubilize salts

9. Complex Formation Equilibrium Constants

10. Solubility rules Solubility product (Ksp) Common ion effect Effect on solubility of adding ions already in equilibrium Effect on solubility of adding ligands Effect on solubility of pH Reaction quotients Concepts from Chapter 18 Part 2