An alcoholic drink is measured to have a concentration of 40.8% ethanol (C2H5OH) by volume. What is the molality (m) of ethanol for this solution? Assume the whisky is composed purely of water and ethanol. The density of the whisky solution can be calculated based on the weighted average of its component densities. Density of water: 0.998 g/mL Density of ethanol: 0.789 g/mL Molar mass of water: 18.02 g/mole Molar mass of ethanol: 46.08 g/mole