Assuming that a body of liquid water is exposed to air. What is the mole fraction (xoxygen) of oxygen in the water at the air/water interface, if the mole fraction of oxygen in the air is 20.5% at the air/water interface is oxygen. Hint: You may assume air acts as an ideal gas and temp of 25o C and pressure of 1atm. Also there is not going to be much oxygen in the water (oxygen has a low solubility in water). Would Henrys law or Raoults law be better to use in this situation and why?