# Problem: From the following list of aqueous solutions and water, select the one with the highest boiling point.A) 1.0 m KNO3B) 0.85 m NaClC) 0.75 m CuCl2D) 1.0 mC12H22O11 (sucrose)E) Pure water

###### FREE Expert Solution

We’re being asked to list the given aqueous solutions in order of increasing boiling points.

Recall that the boiling point of a solution is higher than that of the pure solvent and the change in boiling point (ΔT­b) is given by:

The change in boiling point is also related to the molality of the solution:

$\overline{){{\mathbf{\Delta T}}}_{{\mathbf{b}}}{\mathbf{=}}{{\mathbf{imK}}}_{{\mathbf{b}}}}$

where:

i = van’t Hoff factor

m = molality of the solution (in m or mol/kg)

Kb = boiling point elevation constant (in ˚C/m) of the solvent

81% (265 ratings) ###### Problem Details

From the following list of aqueous solutions and water, select the one with the highest boiling point.

A) 1.0 m KNO3

B) 0.85 m NaCl

C) 0.75 m CuCl2

D) 1.0 mC12H22O11 (sucrose)

E) Pure water