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Topic: Henry and Dalton's Law  (Read 3230 times)

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Offline luckycharm

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Henry and Dalton's Law
« on: March 31, 2008, 04:58:44 PM »
If air contains 21% mole oxgen and at 25 degrees celscius then Henry's Law constant for oxygen in water is 1.23 x 10^-4 mol/ L-Atm, find the solubility of oxygen in water;

a) at sea level and,
b) in the mountains where the air pressure is 0.90 atmosphere

what is the solubility of oxygen?

I am stuck at s = (1.23 x 10^-4 mol/ L - Atm)(.21)(1.0 atm) = 2.58 x 10^-5 mole/L


Thank you so much for your time!

Offline LQ43

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Re: Henry and Dalton's Law
« Reply #1 on: March 31, 2008, 09:34:18 PM »

a) at sea level and,

what is the solubility of oxygen?

I am stuck at s = (1.23 x 10^-4 mol/ L - Atm)(.21)(1.0 atm) = 2.58 x 10^-5 mole/L

looks okay to me,

do the same calculation for the mountain but Ptotal is now 0.90 atm

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