## Chemistry: The Central Science (13th Edition)

Published by Prentice Hall

# Chapter 13 - Properties of Solutions - Exercises: 13.69a

Higher

#### Work Step by Step

Boiling point elevation is given by: $\Delta$Tb = i*Kb*m where i is the Van't Hoff factor, Kb is a constant and m is the molality of the solution. Since NaCl dissolves into Na+ and Cl-, which are two ions, the Van't Hoffe Factor would be 2. Therefore, since the two have the same molality and the Kb are comparable, NaCl would have a higher boiling point

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