Water can be formed in the following reaction: 2H2 + O2 - > 2H2O

If you have 7 moles of Hydrogen gas (H2), how many moles of water can you form? (Assume you have excessive amount of oxygen gas)

7 moles

Explanation:

Given dа ta:

Moles of hydrogen = 7 mol

Moles of water formed = ?

Solution:

Chemical equation:

2H₂ + O₂ → 2H₂O

Now we will compare the moles of water with hydrogen from balance chemical equation:

H₂ : H₂O

2 : 2

7 : 7

So in the presence of excess oxygen and 7 moles of hydrogen seven number of moles of water produced.