If O_2 gas is bubbled through water at 303 K, the number of millimoles of O_2 gas that dissolve in 1 litre of water is \ \ \ \. (Nearest Integer)…

If $\displaystyle \mathrm{O}_2$ gas is bubbled through water at $\displaystyle 303$ K , the number of millimoles of $\displaystyle \mathrm{O}_2$ gas that dissolve in $\displaystyle 1$ litre of water is \_\_\_\_. (Nearest Integer) (Given : Henry's Law constant for $\displaystyle \mathrm{O}_2$ at $\displaystyle 303$ K is $\displaystyle 46.82$ k bar and partial pressure of $\displaystyle \mathrm{O}_2=0.920$ bar) (Assume solubility of $\displaystyle \mathrm{O}_2$ in water is too small, nearly negligible)