Question

hen 9.3 g of an unknown non-electrolyte is dissolved in 50.0 g of benzene, the boiling point the boiling point increased to 81.19 degrees C from 80.1 degrees C. If the Kbp of the solvent is 2.53 K/m, calculate the molar mass of the unknown solute.
The answer is 432. I don't know how
delta T = Kb*molality
Solve for molality

molality = moles/kg solvent
Solve for moles.

moles = grams/molar mass
solve for molar mass.

Related Questions

If 152 g of a cyclohexyl bromide is dissolved in 932 g of benzene solvent, calculate the boiling tem... A 15.0 g sample of an unknown compound is dissolved in 100.0 g of benzene. The boiling point is ra... When 100.0 g of an unknown nonelectrolyte is dissolved in 500.0 g of benzene, C6H6, the solution boi... When 0.354 g of an unknown nonelectrolyte compound was dissolved in 12.5 g of benzene a solution was...