A 83.5 g sample of a nonelectrolyte is dissolved in 249.3 g of water. the solution is determined to have a boiling point of 102.3 °C. what is the molar mass of the compound? (kb for water is 0.510 °C/m).
a) 78.3 g/mol
b) 112.7 g/mol
c) 59.4 g/mol
d) 93.6 g/mol