The solubility of oxygen in lakes high in the Rocky Mountains is affected by the altitude. If the solubility of 02 from the air is 2.67 x 10^-4M at sea level and 25 C, what is the solubility of oxygen at an elevation of 12,000ft where the atmospheric pressure is 0.657 atm? Assume the temperature is 25C and that the mole fraction of 02 in air is 0.209 at both 12,000ft and sea level.