Answer to Question #183926 in General Chemistry for Aubrey

Question

Sulfur Dioxide reacts with Oxygen gas to form Sulfur Trioxide

A. If 3.4 moles of Sulfur Diocide reacts with excess Oxygen gas, how many moles of Sulfur Trioxide will form?

B. How many moles of Oxygen gas will react completely with 4.7 moles of Sulfur Dioxide?

Answer 1

2 SO₂ (g) + O₂ (g) --> 2 SO₃

A. 3.4 moles of SO₂

2 moles of SO₂ = 2 moles of SO₃

= 3.4 moles of SO₃

B. 2 moles of SO₂ react with 1 mole of O₂

= 4.7 moles of SO₂ = 4.7/2

= 2.35moles of O₂