The problem in this question can be solved using the ideal gas formula. Ideal gas formula show interaction between the pressure, volume, temperature and the number of molecules.
n= number of molecule/ avogadro number
n= (2.0116 x 10^23 / 6.02*10^23)= 1/3 mole
T= celcius + 273.15
T= (41+273.15) K=314.15
P=2280 mmHg / (760mmHg/atm)= 3 atm
PV=nRT
V= nrT/ P
V= 1/3 moles * (0.08205 L atm / mol·K) * 314.15 K / 3 atm
V= 2.864 L
