Determination of Molecular Weights by the Cryoscopic Method

Abstract

THE difficulty of obtaining consistent results in the determination of molecular weights by the cryoscopic method has led Brancker, Leach and Daniels1 to suggest a modified form of the classical cryoscopic equation. The difficulty arises from the fact that as the concentration of the unknown solute is changed, the molecular weight, as calculated by the classical equation, does not remain constant. In order to overcome this difficulty, these workers used the equation ΔT = Kfmb.

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References

  1. 1

    Brancker, Leach and Daniels, Nature, 153, 407 (1944).

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