Question

How many moles of aluminum is needed to react with 6.34 moles of Fe​3​O​4​ in the reaction below?

8 Al + 3 Fe3O4 --> 4 Al2O3 + 9 Fe

Input your answer without units.

Answer 1

8 Al + 3 Fe3O4 --> 4 Al2O3 + 9 Fe
8 mol = 3 mol
x. mol = 6.34mol
x=16.7 mol of Al

Answer 2

16.9 mol

Step-by-step explanation:

8Al + 3Fe₃O₄ ⟶ 4Al₂O₃ + 9Fe

You want to convert moles of Fe₃O₄ to moles of Al.

The molar ratio is 8 mol Al:3 mol Fe₃O₄. Calculate the moles of Al

Moles of Al = 6.34 × 8/3

Moles of Al = 6.34 × 2.667

Moles of Al = 16.9 mol Al