A 4.305-gram sample of a nonelectrolyte is dissolved in 105 grams of water. The solution freezes at -1.23°C. Calculate the molecular weight of the solute. Kf for water = 1.86°C/m.
i) 39.7 g/mol
ii) 58.4 g/mol
iii) 46.2 g/mol
iv) 62.0 g/mol
v) 74.2 g/mol