
Concept explainers
Interpretation:
The concentration of amphetamine when it is in contact with
Concept introduction:
Clausius-Clapeyron equation is used to find the vapor pressure at one temperature when vapor pressure at another temperature and heat of enthalpy is given. It determines the change in vapor pressure with a change in temperature. The expression of the Clausius-Clapeyron equation is as follows:
Here,
The conversion factor to convert
The ideal gas equation can be expressed as follows,
Here,
The conversion factor to convert

Answer to Problem 12.137P
The concentration of amphetamine when it is in contact with
Explanation of Solution
Substitute
Substitute
Rearrange the equation (1) to calculate
Substitute
Substitute
The expression to calculate
Substitute
Take the exponential of
Rearrange the equation (3) to calculate the number of moles of amphetamine.
Substitute the value
The formula to calculate the mass of amphetamine is as follows:
Substitute
Therefore, the mass of amphetamine in
The concentration of amphetamine when it is in contact with
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Chapter 12 Solutions
Loose Leaf for Chemistry: The Molecular Nature of Matter and Change
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