Cryoscopy

The cryoscopy , which is a colligative property, makes it possible to determine the molar mass of a Soluté in a solution known thanks to the fall in the temperature of fusion of a Solvant, i.e. the temperature where coexists the state Solide and Liquide of a Corps.

This reduction is also called cryoscopic lowering. Each solvent has its own cryoscopic constant which is used to us to determine the following relation: $\backslash \; Delta\; T\; =\; K\; C\; m$ where ΔT is the variation of Melting point in ˚C , kc the cryoscopic Constante of solvent in °C*kg/mol and m the Molalité of the aqueous solution in molsoluté/kgsolvant

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