A quantity of methyl acetate is placed in an open, transparent, three$-$liter flask and boiled long enough to purge all air from the vapor space. The flask is then sealed and allowed to equilibrate at $45\mathrm{.}0C,$ at which temperature methyl acetate has a vapor pressure of $492\mathrm{.}4mmHg.$ Visual inspection shows $12\mathrm{.}0mL$ of liquid methyl acetate present. You may take the density of liquid methyl acetate to be $0\mathrm{.}932\frac{g}{m}l.$

Physical Property Tables

Pressure in Flask

Correct

What is the pressure in the flask at equilibrium?

$mmHg$

Hint

Flask Contents

Calculate the following:

Mass of methyl acetate in the liquid phase:

Mass of methyl acetate in the vapor phase:

Total mass of methyl acetate in the flask:

Fraction of the mass of methyl acetate that is in the vapor phase: