The boiling point of a liquid will change when a solute is added. Explain how the addition of salt impacts the boiling point of water. Calculate the boiling point change for a given concentration. Given that water's boiling point is 100°C and the elevation constant (Kb) is 0.512 °Ckg/mol,

The boiling point of a liquid will change when a solute is added. Explain how the addition of salt impacts the boiling point of water. Calculate the boiling point change for a given concentration. Given that water's boiling point is 100°C and the elevation constant (Kb) is 0.512 °Ckg/mol,

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section13.7: Colligative Properties Of Solutions

Problem 13.15E

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

The boiling point of a liquid will
change when a solute is added.
Explain how the addition of salt
impacts the boiling point of
water. Calculate the boiling point
change for a given
concentration.
Given that water's boiling point
is 100°C and the elevation
constant (Kb) is 0.512 °Ckg/mol,
calculate the boiling point
increase for a 4.50 molal
solution (moles/kg) of aqueous
NaCl. Assume ideal behavior of
the ions.

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