For the reaction: 2 N2O5 (g) → 4 NO2 (g) + O2 (g)

Question

After the reaction had run for a while, 0.40 M of N2O5 was consumed. What was the molarity of the NO2 and O2 made?

Answer 1

(NO2) = 0.4 M x 4/2 = ?
(O2) = 0.4 M x 1/2 = ?