Free Freezing Point Depression Calculator
Calculate the freezing point depression of a solution using molality and the cryoscopic constant.
C-kg/mol
m
C
Freezing Point Depression
1.860 C
New Freezing Point-1.860 C
Freezing Point Depression vs Cryoscopic Constant (Kf)
How to Calculate Freezing Point Depression
Formula
delta_Tf = i × Kf × m
For water, Kf = 1.86 C-kg/mol. New FP = pure FP - delta_Tf.
Example Calculation
0.5 m NaCl (i=2) in water.
- 01delta_Tf = 2 × 1.86 × 0.5 = 1.86 C
- 02New FP = 0 - 1.86 = -1.86 C
Frequently Asked Questions
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