The density of acetonitrile (CH 3 CN) is 0.786 g/mL and the density of methanol (CH 3 OH) is 0.791g / m * L . A solution is made by dissolving 22.5 mL of CH 3 OH in 98.7 mL of CH 3 CN . (a) What is the mole fraction of methanol in the solution? (b) What is the molality of the solution? (c) Assuming that the volumes are additive, what is the molarity of CH 3 OH in the solution?
