What is the molar mass of a nonelectrolyte compound if 342 g

What is the molar mass of a nonelectrolyte compound if 3.42 grams of the compound dissolved in 41.8

grams benzene begins to freeze at 1.17

Solution

3.33 = 5.12 * (3.42/x)/(40/100)

x = 5.12 * (3.42*1000)/(40*3.33)]

=

131.46 g/mol