Practice question
Question
How many moles of AgCl precipitate when 1 mole of [Ni(NH₃)4Cl₂]Cl₂ reacts with excess AgNO₃?
Explanation
In [Ni(NH₃)4Cl₂]Cl₂, the 2 Cl− ions outside the coordination sphere are ionizable and precipitate as AgCl, while the 2 inside are ligands. Thus, 2 moles form.