A solution of 2.50 g of a nonelectrolyte is dissolved in 10.0 g of water and the solution freezes at -3.720°C. What is the molecular weight of the nonelectrolyte?
Kf(H2O) = 1.860°C/m
a) 50.0 g/mol
b) 75.0 g/mol
c) 100 g/mol
d) 125 g/mol
e) 150 g/mol
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