The solubility of pure nitrogen in blood at body temperature, 370C, and one atmosphere is 6.2 x 10-4 M.  If a diver breathes air (XN2=0.78) at a depth where the total pressure is 2.5 atm, calculate the concentration of nitrogen in his blood.

If N2 gas is bubbled through water at 293 K, how many milli moles of N2 gas would dissolve in 1 liter of water.  Assume that N2 exerts a partial pressure of 0.987 bar.  The KH   for N2 at 293 K is 76.48 K bar.