The figure above represents three sealed 1.0 L vessels, each containing a different inert gas at 298 K. The pressure
of Ar in the first vessel is 2.0 atm. The ratio of the numbers of Ar, Ne, and He atoms in the vessels is 2:1:6,
respectively. After all the gases are combined in a previously evacuated 2.0 L vessel, what is the total pressure of
the gases at 298 K?