A solution prepared by dissolving 1.25g of oil in 99g of benzene has a boiling point of 80.31 degrees Celsius. Determine the molar mass of this compound. (Boiling point of benzene = 80 degrees Celsius, Kb for benzene = 2.53°C/m)
A) 100 g/mol
B) 120 g/mol
C) 140 g/mol
D) 160 g/mol