Question: Hydrazine, N2H4, is a base that ionizes to give N2H5+ and OH (Kb = 1.7 10-6). You add magnesium sulfate to a hydrazine solution.

Hydrazine, N2H4, is a base that ionizes to give N2H5+ and OH (Kb = 1.7 × 10-6). You add magnesium sulfate to a hydrazine solution. Calculate the concentration of Mg2+ ion when magnesium hydroxide, Mg(OH)2, just begins to precipitate from 0.20 M N2H4. Ksp for Mg(OH)2 is 1.8 × 10-11.

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The OH formed by ionization of N 2 H 4 to N 2 H 5 and OH is a common ion that will precipitate Mg 2 ... View full answer

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