What is the molar mass of toluene if 0.85 g of toluene depresses the freezing point of 100 g of benzene by 0.47 degrees celsius? Kf= 5.12 C/m

Answer 1

delta T = kf*m
Substitute and solve for m = molality. You know delta T and Kf.

m = mols/kg solvent You know kg solvent and m.

mols = grams/molar mass. Substitute and solve for molar mass. Yo know grams and mols.

Answer 2

whats molar mass for toluene

Answer 3

C7H8 is toluene.
92.14 is molar mass.