Some of the sulfur dioxide released into the atmosphere is converted to sulfuric acid according to the equation 2SO 2 +2H 2 O+O 2 =2H 2 SO 4 .

Question

How many moles of oxygen are formed from 167.43 g of sulfur dioxide. Provide your final answer rounded to two decimal places.

Answer 1

2SO₂ + 2H₂O + O₂ ==> 2H₂SO₄

Using dimensional analysis to find moles of O₂, we have...

167.43 g SO₂ x 1 mol SO₂/64.064 g x 1 mol O₂ / 2 mol SO₂ = 1.31 moles O₂ (to 2 decimal places)