Answer
Please see the work below.
Work Step by Step
We know that, as the temperature and the number of moles is constant, the following equation can be used:
$P_fV_f=P_iV_i$
This can be rearranged as:
$V_f=\frac{P_iV_i}{P_f}$
We plug in the known values to obtain:
$V_f=\frac{(0.97)(725)}{0.541}=1299.9mL$
