Q: An aqueous solution of non-electrolyte, with a molecular mass of 60, contains 6 grams of non-electrolyte in 500 ml and has a density equal to 1.05 g per ml. What is the molality of the solution?

Flexi Says: Mass of solution = volume (in liters) x density of the solvent (water)
Mass of solvent (kg) = mass of the solution - mass of the solute
Number of moles of the solute = weight of the solute/ molecular weight
Molality = number of moles of solute/ weight of the solvent in kg