SO₂ Reacts with O₂ to Produce SO₃

question 29

Multiple Choice

SO₂ reacts with O₂ to produce SO₃. If 86.0 g of SO₂ is placed in a reaction vessel along with excess oxygen gas, how many moles of SO₂ remain when 50.0 g of SO₃ have been formed?

• A)0.56 mol
• B)0.62 mol
• C)0.72 mol
• D)0.78 mol
• E)1.34 mol

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