Question

The freezing point depression constant of water is -1.86 C/m. If 7.50 g NaCl is dissolved in 45.0 g H2O, the freezing point is changed by -9.71 C. Calculate the van't Hoff factor for NaCl.
A.1.00
B.1.54
C.1.67
D.1.83
E.1.91

Answer

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