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Solubility Equilibria Problem Set
1. What is the molar solubility of aluminum hydroxide and equilibrium concentration of the ions of this compound if the Ksp = 5.0E-33?
2. What is the Ksp of barium sulfate if the solubility of this compound is 9.09E-g per 100.ml of solution? (Hint: is there a problem with the units as written)
Answer: 1)[Al(OH)3](s)=[Al+3]=5.7E-11M , [OH-]=1.7E-12M 2) Ksp=1.52E-9 (units M2)