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

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Quizplus · Accepted Answer

Adding a strong base will increase the pH, allowing for the complete precipitation of SnS. This is because H₂S is a weak acid and will not completely dissociate, which limits the availability of nucleophilic H₂S- ions needed to form SnS. A strong base will react with H₂S to increase the pH and promote the dissociation of H₂S, leading to complete precipitation of SnS.

What Is the Best Way to Ensure Complete Precipitation of SnS