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Calcimator

Freezing Point Depression

Calculate the freezing point depression of a solution from the cryoscopic constant, molality, and van't Hoff factor.

Inputs

°C/m
mol/kg

Results

Freezing Point Depression (ΔTf)

1.86 °C

New Freezing Point

-1.86 °C

Effective Particle Molality1 mol/kg
How to Use This Calculator
  1. Enter the cryoscopic constant (Kf) for your solvent — water is 1.86 °C·kg/mol.
  2. Set molality (mol/kg) and van't Hoff factor (i).
  3. Enter the normal freezing point of the pure solvent.
  4. Review Freezing Point Depression (ΔTf) and New Freezing Point.
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Formula

ΔTf = i × Kf × m

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