Solving a problem in chemistry section 4 point 79

Solving a problem in chemistry section 4 point 79

79. At a certain temperature the equilibrium constant of the reaction: 2NO (g) + O2 (g) ↔ 2NO2 (z) is 2.2. Equilibrium concentrations of NO and O2 are respectively of 0.02 mol / dm3 and 0.03 mol / dm3. Calculate the initial concentrations of NO and O2.

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)