Interpretation: The mole fraction of
Concept Introduction:
The expression for the mole fraction is as follows:
Here,
The expression for moles is as follows:
The expression for molality is as follows:
Answer to Problem 79A
The mole fraction of
Explanation of Solution
Given:
Molality of
Solute is
The moles of solvent should be calculated,
Weight of the solvent is
Molar mass of water is
Substitute,
Substitute,
Substitute
The sum of the mole fraction of solute and solvent is 1. Hence, the mole fraction of solvent is,
Therefore, the mole fraction of
Chapter 16 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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