Fe₂O₃(s) + 3SO₃ (g) $\rightarrow$Fe₂(SO₄)₃. This equation explains the formation of iron(III) sulfate. How many molecules of Fe₂(SO₄)₃ are formed if 144 molecules of SO₃ gas is passed through a beaker containing iron(III) oxide?

Question

Quizplus · Accepted Answer

The balanced equation shows that 3 molecules of SO₃ produce 1 molecule of Fe₂(SO₄)₃. Therefore, 144 molecules of SO₃ will produce 144/3 = 48 molecules of Fe₂(SO₄)₃.

Fe2O3 (s) + 3SO3 (G) →\rightarrow→ Fe2(SO4)3

Fe₂O₃(s) + 3SO₃ (G) $\rightarrow$ Fe₂(SO₄)₃