Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 13 - Properties of Solutions - Exercises: 13.69a

Answer

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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