CBSE Class 12-science Answered
please solve :-
Asked by | 04 Apr, 2008, 02:10: PM
Expert Answer
Given: solubility of H2S gas = 0.195m
It means 0.195 moles of H2S is dissolved in 1 Kg of solvent(water).
1000
Solution: 1 Kg of solvent contains =-------------
18
=55.5moles
nH2S
Mole fraction of H2S gas in solution ,XH2S=
nH2S+nH2O
0.195
=
0.195+55.55
=0.0035
Pressure at STP=0.987bar=1 atm
pH2S=KH X xH2S
0.987
KH =
0.0035
=282bar
Answered by | 06 Jul, 2008, 11:08: AM
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