Which of the following will cause the calculated molar mass of a compound determined by the freezing-point-depression method to be greater than the true molar mass? a. when the solute was added, some was spilled on the lab bench. b. water gets into the solvent after the freezing point of the pure solvent is determined. c. some of the solute molecules break apart. d. the mass of solvent is smaller than that determined from the weighing. e. all of the above