Question

derive the relationship between lowering of capour pressure and molar mass of the solute​

Answer 1

Solution. mole of solvent n1 and number of mole of solute n2 in solution. Knowing the masses of non-volatile solute and the solvent in dilute solutions and by determining experimentally vapour pressure of pure solvent and the solution, it is possible to determine molar mass of a non-volatile solute.