Question
Tue April 22, 2014 By: Amanj Jaiswal

1.what concentration of nitrogen should be present in a glass of water at temp?assume that a temp 25 c ,a total pressure of 1 atmosphere and mol fraction of nitrogen in air of 78.

(kH for nitrogen =8.42* 10 power -17 M/mm hg).

2. one litre of water under   a nitrogen pressure 1 atm dissolves 0.02g of nitrogen at 298K

.calculate henry law constant. 

Expert Reply
Hanisha Vyas
Tue May 06, 2014
Dear amanjaiswal851@gmail.com

Thanks for asking us a question in Ask the Expert section of TopperLearning.com.
 
In case of multiple questions within a query, please post each question individually and let us know where you are getting stuck so that we would be able to explain things better.
 
However, answer to your first query is,

(1) Partial pressure of nitrogen in atmosphere (PN2) = Ptotal x XN2

          PN2 = 592.8 mm Hg

      Solubility of N2 = KH x PN2 = 4.99 x 10-4 (M)

 
Regards

Topperlearning Team.
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