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What do we breathe? Answered


OK, so I know that we breathe oxygen and nitrogen. I know that nitrogen takes up about 79% of the air. I know that oxygen by itself is a poison. What I want to know is: which gasses do we normally breathe, and what is the percentage of each that we breathe so that we aren't poisoned?

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Burf

Best Answer 8 years ago

Composition of Air:

78.08% N2
20.95% O2
0.93% Ar
0.03% CO2
0.002% Ne
Plus trace amounts of Methane, Helium, Krypton, Hydrogen, Xenon

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A-Nony-MusBurf

Answer 8 years ago

If you were to get pure nitrogen, would it naturally occur as N2?

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steveastroukBurf

Answer 8 years ago

The Ar content is much higher on talk like a pirate day however.

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A-Nony-MusRe-design

Answer 8 years ago

that's disgusting, but it's probably going to be a big hit.

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Kiteman

8 years ago

"If you were to get pure nitrogen, would it naturally occur as N2?"



Yes. That is the molecular formula for nitrogen gas.


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caarnteddKiteman

Answer 8 years ago

If nitrogen is N2, what is N? Can nitrogen exist as N?

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caarnteddcaarntedd

Answer 8 years ago

It's OK. I found my answer. I initially googled it but asked the wrong question. I've since found that molecular nitrogen is the gas we know, made up of 2 isotopes, nitrogen-14 and nitrogen-15.
Please correct this if I am wrong, otherwise, sorry if I've wasted your time.

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caarnteddcaarntedd

Answer 8 years ago

Well I've just looked up some more stuff (atomic number, weight, etc.)and realised that I'm filling my head with so much useless info, that I've had to push out some stuff to make room, and now I've forgotten how to drive.
I might just stick to breathing.

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Re-designcaarntedd

Answer 8 years ago

I hate it when it gets to where you have to forget something to learn something new. I need a memory upgrade.

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A-Nony-Muscaarntedd

Answer 8 years ago

It's okay, as long as your question has to do with the topic (which it does), you are not wasting anyone's time.

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Re-design

8 years ago

Depends on the location.  In a classroom with mostly boys you also add to the mix large quantities of added gas composed of mainly













Commonly known as a fart.

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caarnteddRe-design

Answer 8 years ago

Girls fart too. At least after you marry them.

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blkhawk

8 years ago


Oxygen itself is not toxic but an atmosphere of pure oxygen would create a number of problems like everything igniting in flames. Oxygen in nature is usually present like this: O2. Another form of ionized oxygen: ozone (O3) does damage internal lung tissues and it is very toxic.

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steveastrouk

8 years ago

Oxygen isn't toxic - normally ! We need it to work.

Oxygen at a higher partial pressure than we have now tends to be toxic.

Pure oxygen cannot be breathed above about 4 PSI, the partial pressure of oxygen in the atmosphere, without the extra oxidation producing serious problems.

A cursory wikipedia search would yield http://en.wikipedia.org/wiki/Oxygen_toxicity