(a) Compute Kf for a solvent for which the molar mass is 145 g mole-1 as well as the enthalpy of fusion at the freezing point of 325 K is 17.9 kJ per mole.
(b) Define what will be freezing point of solution made by dissolving 12.8 g of naphthalene, C10H8 in fifty grams of the solvent