試題詳解

39. Silver acetate (AgC₂H₃O₂)is a sparingly soluble salt with K_sp = 1.9 ✖ 10^{- 3}. Consider a saturated solution in equilibrium with the solid salt. Compare the effects on the solubility of adding to the solution either the acid HNO₃, or the base NH₃.
(A) Either substance would decrease the solubility.
(B) NH₃ would increase the solubility, but HNO₃, would decrease it.
(C) NH₃ would increase the solubility, but HN0₃ would have virtually no effect.
(D) Either substance would increase the solubility.
(E) NH₃ would decrease the solubility, but HN0₃ would increase it. .