Which of Figures I-IV represent(s)the result of mixing aqueous solutions of Na₂S and NiCl₂ in which the ion product Q_c K_sp for the insoluble product? (C = cation,A = anion) A)both I and II B)only I C)only II D)only III E)only IV

Question

Which of Figures I-IV represent(s)the result of mixing aqueous solutions of Na₂S and NiCl₂ in which the ion product Q_c > K_sp for the insoluble product? (C = cation,A = anion) A)both I and II B)only I C)only II D)only III E)only IV

Quizplus · Accepted Answer

Only Figure III shows the formation of an insoluble product (precipitate), which occurs when the ion product (Q) exceeds the solubility product (Ksp). Figures I and II show no reaction or the formation of a clear solution, indicating the absence of a precipitate. Figure IV shows the formation of a colored complex, which is different from the formation of an insoluble product. Therefore, the correct answer is D) only III.

Which of Figures I-IV Represent(s)the Result of Mixing Aqueous Solutions