What is the best way to ensure complete precipitation of SnS from a saturated H₂S solution? A)Add more H₂S. B)Add a strong acid. C)Add a weak acid. D)Add a strong base. E)Add a weak base.

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Quizplus · Accepted Answer

Adding a strong base will increase the pH of the solution, which will lead to complete precipitation of SnS from a saturated H₂S solution. This is because, at high pH, the solubility of SnS decreases, leading to its precipitation. Adding a strong acid (choice B) or weak acid (choice C) will lower the pH, and adding more H₂S (choice A) or a weak base (choice E) will not affect the pH significantly, so they will not lead to complete precipitation of SnS.

What Is the Best Way to Ensure Complete Precipitation of SnS