The density of methanol, CH3OH, is 0.791 g/mL and the density of acetonitrile, CH3CN, is 0.786 g/mL. A solution is made by dissolving 15.0 g of methanol in 250.0 mL of acetonitrile. Assuming that the volumes of the solute and solvent are additive, describe the molarity of methanol in the solution?