Answer:
28.75 moles
Step-by-step explanation:
Data Given:
no. of moles of ammonia (NH₃) = 23 moles
no. of moles of oxygen gas (O₂) = ?
Reaction given
4NH₃ + 5O₂ -----------> 4NO + 6H₂O
Solution:
First we have to look at the reaction for moles details
4NH₃ + 5O₂ -----------> 4NO + 6H₂O
4 mol 5 mol
So,
if 4 moles of ammonia (NH₃) react with 5 moles of oxygen gas (O₂) so how many moles of oxygen gas (O₂) will be react with 23 moles of ammonia (NH₃).
Apply Unity Formula
4 moles of NH₃ ≅ 5 moles of O₂
23 moles of NH₃ ≅ X moles of O₂
Do cross multiply
moles of O₂ = 5 mol x 23 mol / 4 mol
moles of O₂ = 28.75 mol
So the no. of moles of O₂ that react with 23 moles of NH₃ = 28.75 mol