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A gas mixture has the following composition by volume: SO2 = 8.5%, O2 =10.0% and N2...

A gas mixture has the following composition by volume: SO2 = 8.5%, O2 =10.0% and N2 = 81.5%.

  1. Express the composition in percent by mole.
  2. Determine the average molecular weight of the gas.
  3. Calculate the density gas mixture at 473 K (200 0C) and 303.975 kPa.
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