We place 10.0 moles of N2O into a 2.00 L flask at 300 K. At equilibrium, 2.20 moles remain. Given the following reaction, what is the Kc and the concentrations of N₂ and O₂?
2N₂O(g) ⇌ 2N₂(g) + O₂(g)
a) Kc = 1.1, [N₂] = 1.1 M, [O₂] = 1.1 M
b) Kc = 0.9, [N₂] = 0.9 M, [O₂] = 0.9 M
c) Kc = 2.2, [N₂] = 2.2 M, [O₂] = 2.2 M
d) Kc = 0.45, [N₂] = 0.45 M, [O₂] = 0.45 M