A solution containing 10.50g aniline in 226g of benzene lowers the freezing point of benzene by 2.60°C. What is the molar mass of aniline?
Thank you in advance
Please use the same screen name. First we get confused. Second it takes us longer to sort things out. Third you're asking the same type question which is a waste of time.
delta T = Kf* molality
You know delta T. Look up Kf for benzene. Substitute and solve for molality.
Then m = mols/kg solvent. You know m and kg solvent, solve for mols.
Then mol = grams/molar mass. You know mols and grams solve, for molar mass.