Question

4 moles of hydrogen react with 5 mole of oxygen to form water.Identify excess reagent wheteher it is hydrogen or oxygen????​

Answer 1

Explanation:

Since we have 4 moles of oxygen, we can put that directly into the equation. Assuming that oxygen is our limiting reactant (because it is not otherwise specified), we can find that per one mole of oxygen, we get two moles of water. This means that per four moles of oxygen, we get eight moles of water.