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ByGrace
Guest
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 Posted: Sun Jan 16, 2005 3:22 am Post subject: Air |
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| How do you write air as a composition of the elements?
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Dr.Frencs
Guest
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| Posted: Mon Jan 31, 2005 2:48 pm Post subject: Air |
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| divide it by 2
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RobJim
Senior Member
Joined: 13 Feb 2005
Posts: 320
Location: Los Angeles, CA
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| Posted: Sun Feb 13, 2005 2:07 pm Post subject: |
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From Wikipedia:
http://en.wikipedia.org/wiki/Earth%27s_atmosphere
Air is by volume:
78.1% nitrogen (N2)
20.9% oxygen (O2)
0.9% argon (Ar)
0.035% carbon dioxide (CO2 - variable)
There are also small amounts of water vapor and other gases.
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RobJim
Senior Member
Joined: 13 Feb 2005
Posts: 320
Location: Los Angeles, CA
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| Posted: Sat Feb 26, 2005 9:37 am Post subject: |
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| I guess that's not exactly the composition of air by chemical element, but you should be able to get that from what I listed.
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