A 606-Gram Sample of a Compound Is Dissolved in 250

Multiple Choice

A 6.06-gram sample of a compound is dissolved in 250.grams of benzene.The freezing point of this solution is 1.02°C below that of pure benzene.What is the molar mass of this compound? (Note: K_f for benzene = 5.12°C/m. ) Ignore significant figures for this problem.

A) 30.4 g/mol
B) 122 g/mol
C) 243 g/mol
D) 4.83 g/mol
E) 60.8 g/mol