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Question

How many moles of AgCl precipitate when 1 mole of [Cr(H₂O)5Cl]Cl₂ reacts with excess AgNO₃?

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Explanation

In [Cr(H₂O)5Cl]Cl₂, the 2 Cl− ions outside the coordination sphere are ionizable and form AgCl, while the inner Cl is a ligand. Thus, 2 moles precipitate.

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