charrsch5576 charrsch5576

03-11-2020
Chemistry

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If a volatile liquid is added to a sealed flask, the total pressure inside the flask is a sum of the air pressure and the vapor pressure of the liquid. Consider a flask at 298 K with an air pressure of 738 mmHg to which some n-butanol is added. If the measured pressure after the addition is 746 mmHg, what is the vapor pressure of n-butanol at 298 K

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06-11-2020

Answer:

Explanation:

Total pressure inside flask = air pressure + vapour pressure of butanol

746 = 738 + vapour pressure of butanol

vapour pressure of butanol = 8 mm Hg .

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