Question

Compute the boiling point elevation of a salt water solution that contains 2.60 g of NaCl dissolved in 121 ml of water. Enter the number of degrees celsius that the boiling point will be elevated.

Answer 1

moles NaCl = grams NaCl/molar mass NaCl
Solve for moles NaCl.

molality = #moles/kg solvent.
Solve for molality.

delta T = i*Kb*m
Solve for delta T

Answer 2

Note:i is the van't Hoff factor. It is 2 for NaCl.