
Concept explainers
Determine how ideal the following solutions are by calculating the mole fraction of solute in each solution, and comparing that to the expected mole fractions. All data are for
(a)
(b)
(c)

(a)
Interpretation:
Whether the solution of
Concept introduction:
The mole fraction is given by the formula given below.
In the above expression,
Answer to Problem 7.55E
The solution of
Explanation of Solution
The mole fraction of iodine is calculated as follows.
For
The mole fraction of iodine is calculated as shown below.
Thus, the mole fraction is approximately five times higher than expected due to non-ideal behavior.
The mole fraction

(b)
Interpretation:
Whether the solution of
Concept introduction:
The mole fraction is given by the formula given below.
In the above expression,
Answer to Problem 7.55E
The solution of
Explanation of Solution
The mole fraction of iodine is calculated as follows.
For
The mole fraction of iodine is calculated as follows.
Thus, the mole fraction is approximately twenty seven times higher than expected value due to non-ideal behavior.
The mole fraction

(c)
Interpretation:
Whether the solution of para-dichlorobenzene,
Concept introduction:
The mole fraction is given by the formula given below.
In the above expression,
Answer to Problem 7.55E
The solution of para-dichlorobenzene,
Explanation of Solution
The mole fraction of
For
The mole fraction of para-dichlorobenzene is calculated as follows.
Thus, the mole fraction is approximately four times higher than expected value due to non-ideal behavior.
The mole fraction
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Chapter 7 Solutions
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