Answering the burning question.

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Well, I was 22% correct?:
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Quote:
Answer: This is composition of air in percent by volume, at sea level at 15°C and 101325 Pa.

Nitrogen -- N2 -- 78.084%

Oxygen -- O2 -- 20.9476%

Argon -- Ar -- 0.934%

Carbon Dioxide -- CO2 -- 0.0314%

Neon -- Ne -- 0.001818%

Methane -- CH4 -- 0.0002%

Helium -- He -- 0.000524%

Krypton -- Kr -- 0.000114%

Hydrogen -- H2 -- 0.00005%

Xenon -- Xe -- 0.0000087%

Ozone -- O3 -- 0.000007%


http://chemistry.about.com/od/chemistryfaqs/f/aircomposition.htm
 
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