Chemistry - Liquid Solution Question with Solution | TestHub

The henry constant for ${\mathrm{N}}_2$ and ${\mathrm{O}}_2$ gas dissolved in water at 298 K are $6\times 10^9\mathrm{N}/{\mathrm{m}}^2$ and $2.5\times 10^9\mathrm{N}/{\mathrm{m}}^2$. A sample of water at 298 K was equilibrium with air containing 20 mole $\%$ oxygen and 80 mole $\%$ nitrogen at 1 atm . If the dissolved gas was separated from a sample of this water and then dried. Then calculate the mole % of oxygen gas in the dried sample