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# Thread: Chemistry porn

1. ## Chemistry porn

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btw, if atmospheric pressure suddenly changes from 1.00 atm to 0.891 atm at 298 K, how much oxygen will be released from 5.00 L of water in an unsealed container? Henry's law constant for oxygen = 0.00130 M/atm.

Air is 21.0% oxygen (irrelevant?).

4. Originally Posted by Errorist
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btw, if atmospheric pressure suddenly changes from 1.00 atm to 0.891 atm at 298 K, how much oxygen will be released from 5.00 L of water in an unsealed container? Henry's law constant for oxygen = 0.00130 M/atm.

Air is 21.0% oxygen (irrelevant?).
Sounds like an equilibrium question
You could probably answer it with the clausius-clapeyron relation

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8. this was stolen from reddit. OP give credit to original author.

9. Originally Posted by Lowporkwa
this was stolen from reddit. OP give credit to original author.
How the hell am I supposed to know it's from reddit? You can research every single thing you find on the internet to find its source, but I don't have time for that, sorry

10. Originally Posted by ckuyook
Sounds like an equilibrium question
You could probably answer it with the clausius-clapeyron relation
It's a Henry's law problem. Doesn't seem to be a lot of help from googling it.

Just figured it out.

Sudden change in atm:
1 atm - .891 atm = .109 atm

Change in atm * 21% partial pressure of oxygen:
.109 atm * .21 oxygen = .0229 atm

Henry's Law (M=kP):
.0229 atm * .00130 M/atm = 2.98x10^-5 mol

Moles * the 5.00 L of water:
2.98x10^-5 mol * 5.00 L = 1.49x10^-4 mol

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