How many moles of iron can be made from 6 moles H2?

Fe2O3(s) + 3H2(g) → 2Fe(s) + 3H2O(l)

Number of moles of Fe formed = 4 mol

Explanation:

Given data:

Number of moles of H₂ = 6 mol

Number of moles of Fe formed = ?

Solution:

Chemical equation:

F₂O₃ + 3H₂    →  2Fe + 3H₂O

Now we will compare the moles of H₂  with Fe from balance chemical equation.

                          H₂         :          Fe

                           3          :           2

                           6          :          2/3×6 = 4 mol

From 6 moles of H₂ 4 moles of Fe are produced.