What is the freezing point depression constant of a solvent, 50 g of which contain 1 g non-volatile solute (mo…

Question

What is the freezing point depression constant of a solvent, $50 \, \text{g}$ of which contain $1 \, \text{g}$ non-volatile solute (molar mass $256 \, \text{g mol}^{-1}$ ) and the decrease in freezing point is $0.40 \, \text{K}$ ?

A
$5.12 \, \text{K kg mol}^{-1}$
B
$4.43 \, \text{K kg mol}^{-1}$
C
$1.86 \, \text{K kg mol}^{-1}$
D
$3.72 \, \text{K kg mol}^{-1}$

Accepted Answer

A. **$$5.12 \, 	ext{K kg mol}^{-1}$$**

Answer

B. **$$4.43 \, 	ext{K kg mol}^{-1}$$**

Answer

C. **$$1.86 \, 	ext{K kg mol}^{-1}$$**

Answer

D. **$$3.72 \, 	ext{K kg mol}^{-1}$$**

Answer & step-by-step solution

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