
John E. answered 03/08/21
Academic Science and Math Tutor - 5+ years
H2S (g) + O2 --> H2O (l) + SO2
Because this is a 1:1 ratio of Oxygen to Hydrogen Sulfide, you need the same amount of mole of both to fully react both.
we have 2.07 moles of hydrogen sulfide, so we need 2.07 moles of oxygen.
PV = nRT
V=nRT/P
V = (2.07 mol)(0.08 L atm mol-1K-1 )(273.15 K)/(1 atm)
V = 45.23 L