After $0\mathrm{.}600L$ of $Ar$ at $1\mathrm{.}19$atm and $240\mathrm{.}0C$ is mixed with $0\mathrm{.}200L$ of $O_2$ at $428.$ torr and $110\mathrm{.}0C$ in a $400,-mL$ flask at $28\mathrm{.}0C,$ what is the pressure in the flask? Be sure your answer has the correct number of significant figures.

Note: Reference the Conversion factors for non$-$SI units, Fundamental constants and SI prefixes tables for additional information.

atm