Answer
Please see the work below.
Work Step by Step
We know that
$P=(\frac{6}{760})\times 101000=797.36Pa$
As $PV=nRT$
This can be rearranged as:
$\frac{V}{n}=\frac{RT}{P}$
We plug in the known values to obtain:
$\frac{V}{n}=\frac{8.31\times 220}{797.36}=2.293\frac{m^3}{mol}=2293\frac{L}{mol}$
