Exam 3 Question 9

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Exam 3 Question 9

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Exam 3

9.  Suppose 0.010 M sodium sulfide (Na2S) is added to the solution above (in #8) containing nickel nitrate (NiNO3) and ammonia (NH3). Would you expect nickel(II) sulfide (NiS) to precipitate? The Ksp of nickel(II) sulfide is 3.0 x10–19, and its molecular weight is 122.81 g/mol. The Kf of Ni(NH3)6+2 is 5.6 x108. You can assume no other reactions occur. You must show work justifying your answer for full credit. (13 pt

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This question is taken from Chem 102 – General Chemistry II » Summer 2021 » Exams