In order to train and demonstrate the determination of molar masses by way of a measurement of the freezing-point depression, urea or hydroquinone are used as test substances. The cryoscopic constant of water is determined from the freezing point depression.
Benefits
With detailed experiment guide
Compact, easily transportable setup
Simultaneous display of current temperature and temperature difference
Tasks
Determine the freezing point depression of water dissolving different amounts of hydroquinone and urea.
Calculate the cryoscopic constant from the experimental results.