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.
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
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