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Freezing Point Depression of A Solution

Freezing Point Depression of A Solution

CAT NO: DIDACTICELECTROMETER0086

Freezing Point Depression of A Solution Description and Tender Specification:

Freezing Point Depression of A Solution.

The freezing point of a solution is always lower than that of pure solvent.
A specifi c instrument (cryoscope) will determine freezing-point depression in experimental way.
If cryoscopic constants of solvent are known, the molecular mass of dissolved substances can be determined.

TRAINING PROGRAM
Raoult’s law
Cryoscopic constants
Chemical potential
Gibbs-Helmholtz equation
Concentration ratio
Degree of dissociation
Van’t Hoff factor
Cryoscopy

OBJECTIVES
Determining the value of freezing-point depression of a solution after the dissolution of a strong electrolyte (NaCl) in water.
Comparing experimental and theoretical values for this concentration will lead to determine the number of ions involved in electrolyte dissociation
Determining the apparent molar mass of a non-electrolyte from the value of freezing-point depression

COMPONENTS
Apparatus for freezing-point depression
Glassware
Chronometer
2 thermometers

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