According to Henry's law, solubility of solution is directly proportional to partial pressure thus,
![\frac{S_{1}}{P_{1}}=\frac{S_{2}}{P_{2}}](https://tex.z-dn.net/?f=%5Cfrac%7BS_%7B1%7D%7D%7BP_%7B1%7D%7D%3D%5Cfrac%7BS_%7B2%7D%7D%7BP_%7B2%7D%7D)
Solubility at pressure 3.08 atm is 72.5/100, solubility at pressure 8 atm should be calculated.
Putting the values in equation:
![\frac{0.725}{3.08}=\frac{S_{2}}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B0.725%7D%7B3.08%7D%3D%5Cfrac%7BS_%7B2%7D%7D%7B8%7D)
On rearranging,
![S_{2}=\frac{0.725\times 8}{3.08}=1.88](https://tex.z-dn.net/?f=S_%7B2%7D%3D%5Cfrac%7B0.725%5Ctimes%208%7D%7B3.08%7D%3D1.88)
Therefore, solubility will be 1.88 mg of
gas in 1 g of water or, 188 mg of tex]N_{2}[/tex] gas in 100 g of water.
Carbon dioxide
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