Molality of an aqueous solution that produces an elevation of boiling point of 1.00 K at 1 atm pressure. Kb for water is 0.512Kkgmol−1

Answer 1

The equation you want to use here is Delta T = imK

Delta T = change in temperature = 1.00 degrees

i = van’t Hoff factor = 1 for non electrolytes

m = molality = ?

K = boiling point constant = 0.512

m = 1.00/(1)(0.512) = 1.95 m (assuming the solute is a non electrolyte, which wasn’t stated in the problem)