Question

a solution if prepared by dissolving 20.2 mL of methanol, CH3OH, in 100.0 mL of water. The final volume of the solution is 118 mL. The density of the pure methanol is 0.782 g/mL while the density of pure water is 1.00 g/mL. For this solution calculate A) molarity B) Molality C) Percent by mass