14. 0.2 m aqueous solution of KCl freezes at -0.68°C calculate van't Hoff factor. kf, for water is 1.86 K kg mol¹.
Question
Solution 1
To calculate the van't Hoff factor (i), we can use the formula for the freezing point depression:
ΔTf = i * Kf * m
Where: ΔTf is the freezing point depression, Kf is the cryoscopic constant (also known as the freezing point depression constant), m is the molality of the solution.
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