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The solubility of pure nitrogen gas at 2...

The solubility of pure nitrogen gas at `25^(@)C` and 1 atm `6.8xx10^(-4)` mol/L. What is the concentration of nitrogen nitrogen dissoved in water under atmospheric condition ? The partial pressure of nitrogen gas in atmosphere is 0.78 atm.

Text Solution

Verified by Experts

The correct Answer is:
`5.3xx10^(-4) M`
Step I. Calculation os Henny's Law constant.
`"According to Henny's Law, C=K_(H)P`
`(6.8xx10^(-4)molL^(-1))=K_(H)(1 atm)`
`K_(H)=6.8xx10^(-4)molL^(-1)atm^(-1)`
Step II. Calculation of solubility of nitrogen gas in water
`C=(6.8xx10^(-4)mol L^(-1) atm^(-1))xx(1 atm)`
`=5.3 xx 10^(-4)mol L^(-1)=5.3xx10^(-4)M`
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