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Working with Mole Fraction and Vapor Pressure

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A solution of sodium chloride in water has a vapor pressure of 20.3 torr at 25°C. What is the mole fraction of NaCl in this solution.What would be the vapor pressure of this solution at 45°C? The vapor pressure of pure water is 23.8 torr at 25°C and 71.9 torr at 45°C

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11.48
<br>
<br>According to Rauolts law,
<br>
<br>Pa = Pao * mole fraction of solvent...(1)
<br>
<br>where Pa is the vapour pressure of the solvent,
<br>Pao is the vapour pressure of the ...

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