A bottle filled with 0.5 L of an aqueous solution is atequilibrium with the gas containing 70 % (mole fraction) ofnitrogen, N2, and 30 % of oxygen, O2. The temperature is 25 oC andthe total pressure of the gas is 10 atm. The Henry’s Law constantsfor nitrogen and for oxygen in the solution are 6.1 × 10-4 mol L-1atm-1 and 1.3 × 10-3 mol L-1 atm-1 .
(i) Calculate the partial pressure of oxygen and of nitrogen inthe gas.
(ii) Calculate the molarity of nitrogen and oxygen dissolved inthe solution.
(iii) Calculate the mass of nitrogen and the mass of oxygenreleased from the solution when the pressure in the gas wasdecreased to 1 atm at temperature 25 oC.
(iv) Calculate the volume of the gas released from the solutionat pressure 1 atm and temperature 25 oC.
