Helium is dissolved in water with the total pressure of gas (Helium + water vapor) over the water being 2.20 atm. The temperature is 25o C.
Give your answer in g/L .
The vapor pressure of water at 25.0oC is 23.8 mm Hg.
Note that kH has units of mol/L
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mm Hg
2007-03-08 02:13:55 · 2 answers · asked by becky 1 in Science & Mathematics ➔ Chemistry
ok to do it you take the pressure of He 2.20atm and x by 760 mm Hg to convert = ____ mmHg - 23.8 (vapor press of water). then multiply by henry's constant for He (3.7e-4). take that ans which will be in mol of He/ L and multiply by the molar mass of He (4g) and u will get ur ans in g/L...
the ans should be: 2.439336
Good luck! :)
2007-03-08 10:59:08 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Helium is so light it will only stay in water a very short time.
2007-03-08 10:17:55 · answer #2 · answered by JOHNNIE B 7 · 0⤊ 0⤋