CHE 1800 Molarity 3b G. Lind 1. Calculate the molarity of a solution which was made by transferring 5.00 mL of a 1.05 molar aqueous solution to a 100.0 mL volumetric flask and filling the flask to the mark with distilled water. 2. Assume you have 5.00 L of 0.350 molar aqueous NaCl solution. You need 250.0 mL of 0.250 molar aqueous NaCl solution. Calculate how many mL of the 0.350 molar solution you need to take to make the desired final solution in a 250.0 mL volumetric flask.