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3. A 1.27-g sample of the reddish-brown gas NO2 is placed in a 500mL flask at alig temperature. The flask and its contents are then

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3. A 1.27-g sample of the reddish-brown gas NO2 is placed in a 500mL flask at alig temperature. The flask and its contents are then cooled to 75C. When NO2 is coim some (but not all) of it dimerises to form colorless dinitrogen tetroxide, N2O4 - 2NO2(g)N2O4(g) The total pressure in the flask at 25.8C is found to be 0.800atm. Calculate tis git fraction and partial pressure of each of the two gases, NO2 and N2O4, in the fises 25.00C

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