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

question 33

Multiple Choice

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?

• A) 288
• B) 144
• C) 72
• D) 24
• E) 48