How many grams of O2 are produced when 50 grams of SO3 react?

Question

Balanced form: 2 SO3 = 2 SO2 + O2

Answer 1

2SO₃ ==> 2SO₂ + O₂

Use dimensional analysis and stoichiometry:

50 g SO₃ x 1 mol SO₃ / 80 g x 1 mol O₂ / 2 mol SO₃ x 32 g O₂ / mol O₂ = 10.0 g O₂