(a)
Interpretation:
Mole fraction of each component present in the given solution has to be calculated.
Concept introduction:
Raoult’s law states that in an ideal mixture of liquid solution, partial pressure of every component is equal to its mole fraction multiplied into vapour pressure of its pure components.
Where,
Mole fraction: Concentration of the solution can also expressed by mole fraction. Mole fraction is equal to moles of the component divided by total moles of the mixture.
(a)
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Answer to Problem 13.106SP
Mole fraction of component A is
Mole fraction of component B is
Explanation of Solution
Given data:
Molar mass of liquid A =
Molar mass of liquid B =
Vapour pressure of A =
Vapour pressure of B =
Calculate mole fraction of each component:
Assume
The mole fraction of the component is calculated by moles of the component divided by the total number of moles in the mixture.
Substituting the values of moles of each component and total moles of the component, the mole fraction of each component has calculated.
(b)
Interpretation:
The partial pressure of the components over the given solution at
Concept introduction:
Raoult’s law states that in an ideal mixture of liquid solution, partial pressure of every component is equal to its mole fraction multiplied into vapour pressure of its pure components.
Where,
(b)
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Answer to Problem 13.106SP
Partial pressure of solution A is
Partial pressure of solution B is
Explanation of Solution
Calculate partial pressure of each component:
The formula for partial pressure,
According to Raoult’s law, the vapour pressure of the solution is sum of the individual partial pressure exerted by the solution and then using partial pressure equation, partial pressure of each component has been calculated.
(c)
Interpretation:
The mole fraction of each component in the condensed liquid and the vapour pressure of the components above the condensed liquid at
Concept introduction:
Raoult’s law states that in an ideal mixture of liquid solution, partial pressure of every component is equal to its mole fraction multiplied into vapour pressure of its pure components.
Where,
(c)

Answer to Problem 13.106SP
Mole fraction of component A in condensed liquid is
Mole fraction of component B in condensed liquid is
Partial pressure of the component A above condensed liquid at
Partial pressure of the component B above condensed liquid at
Explanation of Solution
The mole fraction is equal to partial pressure of the component divided by the total pressure.
Substituting the value of partial pressure of each component and total pressure, the mole fraction of each component at condensed liquid has calculated.
Calculation of partial pressure of each component
The mole fraction of each component in condensed liquid is,
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Chapter 13 Solutions
EBK GENERAL CHEMISTRY: THE ESSENTIAL CO
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