Use the reaction below for the combustion of ammonia gas to
produce nitrogen monoxide and water vapor.
4NH3(g) + 302(g) → 4NO(g) + 6H₂O(g)
What volume of O2 is needed to react fully with 720. mL of
NH3?
a) 960 mL O2
b) 1.02 L O2
c) 720. mL O2
d) 540. mL O2