Interpretation: The mole fraction of ethanol is to be calculated when
Concept introduction: Mole fraction is a term that can be used to express solution concentration. The mole fraction of a particular solute is the ratio of the number of moles of solute present in the solution to the total number of moles present in the solution is the addition of the number of moles of solute and solvent.
The formula that can be used for the calculation of mole fraction is,
Here,
The expression for moles is as follows:
Answer to Problem 83A
The mole fraction of ethanol is
Explanation of Solution
The mole fraction of ethanol can be calculated by knowing the number of moles of solute and solvent present in a solution.
The given solute is ethanol and its given mass is
The given solvent is water and its mass is
Substitute,
Substitute,
Substitute
Therefore, the mole fraction of ethanol is
Chapter 16 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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