1. The problem statement, all variables and given/known data How many total moles of ions are released when the following sample dissolves completely in water? 2.63 g of CuSO4 * 5H2O 2. Relevant equations 159.611 g / mol of CuSO4 3. The attempt at a solution I tried doing 2.63 g / [159.611 g / mol] to get .016477 mol of CuSO4. and since there are two ions, Cu2+ and SO42- I just multipled the answer by two and got .032955 mol ions But that isn't the answer. Am I missing anyhting?