chemistry question

Question

Calculate the boiling point of a 8.50 m aqueous solution of propylene glycol. 

Answer 1

∆T = imK

∆T = change in boiling point = ?

i = van't Hoff factor = 1 for propylene glycol since it does not dissociate/ionize

m = molality = 8.50 m

K = boiling point constant for water = 0.512º/m

Solve for ∆T:

∆T = (1)(8.50)(0.512) = 4.35ºC (NOTE: this is the CHANGE in boiling point)

Since water normally boils at 100ºC, the boiling point of the solution is 104.35º or 104º