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When N2O5(g) is heated, it dissociates into N2O3(g) and O2(g) according to the following reaction: N2O5(g)...

When N2O5(g) is heated, it dissociates into N2O3(g) and O2(g) according to the following reaction:
N2O5(g) ⇌ N2O3(g)+O2(g) Kc=7.75 at a given temperature.
The N2O3(g) dissociates to give N2O(g) and O2(g) according the following reaction:
N2O3(g)⇌N2O(g)+O2(g) Kc=4.00 at the same temperature.
When 4.00 mol of N2O5(g) is heated in a 1.00-L reaction vessel to this temperature, the concentration of O2(g) at equilibrium is 4.50 mol/L.

Part A
Find the concentration of N2O5 in the equilibrium system.
Express your answer using two decimal places.

Part B
Find the concentration of N2O in the equilibrium system.
Express your answer using two decimal places.

Part C
Find the concentration of N2O3 in the equilibrium system.
Express your answer using two decimal places.

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