Which of the following compounds will have the highest molar solubility in pure water? A) PbS, K_sp = 9.04 × 10^-²⁹ B) ZnSe, K_sp = 3.6 × 10^-²⁶ C) Fe(OH)₃, K_sp = 2.79 × 10^-³⁹ D) ZnS, K_sp = 2.0 × 10^-²⁵ E) Ag₂S, K_sp = 6.0 × 10^-51

Question

Quizplus · Accepted Answer

The compound with the highest molar solubility will have the highest Ksp value. Ksp represents the equilibrium constant for the dissolution of a solid in water, so a larger Ksp means more of the solid will dissolve. 
Out of the given options, Fe(OH)3 has the highest Ksp value, indicating that it has the highest molar solubility in pure water.

Which of the Following Compounds Will Have the Highest Molar