Question: how many moles of ions are present when 0.10 mol of each compound is dissolved in water?
Answer: Colligative property – A property that depends only on the number of solute particles and not their identity. How many moles of ions are present when 0.10 mol of each compound is dissolved in water: Al2(SO4)3 0.10 mol X 5 ions = 0.50 moles of ions.