Given that you wished to use exactly 0.325 mole of nacl to prepare a 2.50 m nacl solution, how many milliliters of solution must you prepare

130 ml Molarity = moles/liter molarity = 2.50 moles = .325 2.5 = .325/liters solving this equation for liters: 2.5 * liters = .325 liters = .325/2.5 = 0.13 now a unit conversion from liters to the milliliter unit requested by the problem. 1 liter is 1000 milliliters .130l * 1000 ml/l = 130 ml