Answer to Question #166576 in General Chemistry for ASARE KELVIN

Question

find the number of molecules of oxygen required to convert 6.60 dm^3 of SO2 measured at s.t.p to SO3

Answer 1

2SO₂ + O₂ $\to$ 2SO₃

6.60dm³=6.6L

n(SO2)=6.6L/22.4L=0.2946mol

n(O2)=0.2946mol/2=0.1473mol

N(O2)=0.1473×6.02×10²³ = 0.887×10²³

= 8.87 × 10²²