The freezing point depression constant for water is –1.86°Cm–1. I – McqOptions

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1.	The freezing point depression constant for water is –1.86°Cm–1. If 5.00 g Na2SO4 is dissolved in 45.0 g H2O, the freezing point is changed by -3.82°C. Calculate the van't Hoff factor for Na2SO4?
A.	0.381
B.	2.63
C.	2.05
D.	3.11
Answer» C. 2.05

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