Chapter 8, Problem 52E

Consider the reaction between reactants S and O₂:

$2\text{S}\left(s\right)+3{\text{O}}_2\left(g\right)\to 2\text{}{\text{SO}}_3\left(g\right)$

If a reaction vessel initially contains 5 mol S and 9 mol O₂ how many moles of S, O₂ and SO₃ will be in the reaction vessel after the reactants have reacted as much as possible? (Assume 100% actual yield.)