Question

describe cryoscopic method to determine the molecular mass of anon volatile solute

Answer 1

Procedure

Chemicals: Para-dichlorobenzene (PDB), unknown sample, acetone

Equipment: 600-mL beaker, large test tube, wire gauze, thermometer, two utility clamps, stand with ring clamp, Bunsen burner, split stopper, looped glass stirring rod, beaker tongs**

**Be certain to use beaker tongs and not crucible tongs; beaker tongs have a rubber coating on the end where they grip the beaker; crucible tongs do not.