
Concept explainers
(a)
Interpretation: The weight percentage of
Concept introduction:
Mole fraction: Amount of that component divided by the total amount of all of the components of the mixture
Weight percent: The mass of one component divided by the total mass of the mixture, multiplied by
The number of moles of any substance can be determined using the equation
Molality (m): Molality is the number of moles of solute present in one kilogram of solvent.
(a)

Answer to Problem 56GQ
Weight percentage of
Explanation of Solution
Given,
Given mass of
Given mass of ice is
Weight percentage of
Weight percentage of
(b)
Interpretation: The mole fraction of
Concept introduction:
Mole fraction: Amount of that component divided by the total amount of all of the components of the mixture
Weight percent: The mass of one component divided by the total mass of the mixture, multiplied by
The number of moles of any substance can be determined using the equation
Molality (m): Molality is the number of moles of solute present in one kilogram of solvent.
(b)

Answer to Problem 56GQ
Mole fraction of
Explanation of Solution
Given,
Given mass of
Given mass of ice is
Molar mass of
Molar mass of ice is
Number of moles of
Number of moles of ice is,
Mole fraction of
Mole fraction of
(c)
Interpretation: The molality of the solution of
Concept introduction:
Mole fraction: Amount of that component divided by the total amount of all of the components of the mixture
Weight percent: The mass of one component divided by the total mass of the mixture, multiplied by
The number of moles of any substance can be determined using the equation
Molality (m): Molality is the number of moles of solute present in one kilogram of solvent.
(c)

Answer to Problem 56GQ
Molality of the solution is
Explanation of Solution
Given,
Given mass of
Given mass of ice is
Molar mass of
Molar mass of ice is
Number of moles of
Number of moles of ice is,
Molality of the solution is calculated,
Molality of the solution is
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Chapter 13 Solutions
OWLv2 6-Months Printed Access Card for Kotz/Treichel/Townsend's Chemistry & Chemical Reactivity, 9th, 9th Edition
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