Question

The following balanced equation shows the formation of sulfur dioxide.

S + O2 mc023-1.jpg SO2

How many moles of sulfur are needed to produce 15.0 mol of sulfur dioxide?

Answer 1

15 mol Sulfur is needed to produce 15.0 mol of Sulfur dioxide. 

Answer 2

S + O₂ → SO₂

The mole ratio of S to SO₂ is 1 : 1
∴ if moles of SO₂ = 15
then moles of SO₂ = 15 mol

∴ the # of moles of sulfur needed to produce 15.0 mol of sulfur dioxide is 15 mol