A solution is made by dissolving 0.554 mol of nonelectrolyte solute in 841 g of benzene. Calculate the freezing point, 𝑇f, and boiling point, 𝑇b, of the solution.

Question

Constants can be found in the table of colligative constants.

Answer 1

So Gillian R.,

first calculate the molal concentration of the solute in the solvent. Then multiply that figure by the freezing point depression constant for benzene, and the boiling point elevation constant for benzene, respectively, and you get the resulting offsets. Look up the precise normal freezing and boiling points of benzene; apply the offsets, and round to appropriate precision. Done!

-- Cheers, --Mr. d.