In this experiment, the freezing points of aqueous solution of methanol, a non-electrolyte, and sodium chloride , an electrolyte, will be measured and the molality of each solution will be calculated. wecan not know the freezing point certainly has of the solution aforementioned because of , in that experiment is the error between solution preparation.
from the principle , A solution freezes at a lower temperature then does the pure solvent. This phenomenon is called freezing point depression. The freezing point depression which is dependent upon the number of dissolved particles in the solution. The higher the solute concentration the greater the freezing point depression of the solution
The freezing point of the pure solvent is at constant temperature but the freezing point of the solution slowly decreases. The decrease caused by the increase in solute concentration as the solvent freezes.,