Question

4 Fe(s) + 3 O2(g) 2 Fe2O3(s) ΔH = -1652 kJ
How much heat is released when 3.82 mol iron is reacted with excess O2?

Answer 1

1652 kJ x (3.82 moles/4 moles) = ??

Answer 2

1652 x (3.82 moles/4 moles) = 1577.66