試題詳解

24. If you add 0.10 M silver nitrate dropwise to a solution consisting of 0.10 M C^l– and 0.10 M CrO₄ ^2–, the precipitates are obtained. Given the K_sp for Ag₂CrO₄ is 9.0 × 10^–12 and that for AgCl is 1.6 × 10^–10. Which of the followings will precipitate first?
(A) silver chloride
(B) silver chromate
(C) silver nitrate
(D) It cannot be determined by the information given.
(E) silver metal