Answer
$5.53942dm^3$
Work Step by Step
Using the Boyle's law and Charles in combination
$V_f=V_i\times\frac{P_i}{P_f}\times\frac{T_f}{T_i}$
We plug in the known values to obtain:
$V_f=5.41dm^3\times \frac{101.5Kpa}{102.8KPa}\times \frac{308}{297}=5.53942dm^3$
