If you react 5.6 moles of pbs(s) in the air, how much o2 (in grams) would be needed for a complete reaction?

Respuesta :

2PbS + 3O₂ = 2PbO + 2SO₂

m(O₂)=3M(O₂)n(PbS)/2

m(O₂)=3*32.0g/mol*5.6mol/2=268.8 g