Dinitrogen tetroxide, N2O4, dissociates at room temperature to give nitrogen dioxide, NO2. N2O4 (g) ⇌ 2 NO2 (g) (a) The equilibrium constant Kc at 25°C is 0,125. What percentage of dinitrogen tetroxide is dissociated when 0,0300 mol N2O4 is placed in a 1,00 dm3 flask and left to reach equilibrium?

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