Question

Sulfur dioxide burns in oxygen to form sulfur trioxide according to the equation:

SO₂ (g) + O₂--------------------------SO₃, (g)

1. If three moles of SO₃, are produced, How many moles of SO₂ and O₂ are required?

2. What volume of oxygen is needed to react with 80 L of SO₂ at STP?

Answer 1

Two moles of sulfur will react with 1 mole of oxygen gas to produce two moles of sulfur trioxide.