1. In the gaseous form, SO3 is a significant air pollutant, being the primary agent in acid rain. SO3 can further react with nitrogen monoxide to create NO2 which is also an air pollutant, as seen in the reaction below: SO3 (g) + NO (g)S NO2 (g) + SO2 (g) At 298K, the concentrations of the four gasses were found to be: [SO3] = 0.52 mol/L [NO] = 0.18 mol/L [SO2] = 1.34 mol/L [NO2]= 2.56 mol/L If the K, is 4.27 at 298K, is the reaction at equilibrium and if not, which direction does it need to move (right or left) to reach equilibrium? Explain. a. At equilibrium, the concentrations of the three gases are: [NO] = 0.68 mol/L b. [SO3] = 1.52 mol/L [SO2] = 1.98 mol/L [NO2]= 2.23 mol/L

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