In: Chemistry
Henry’s law constant (mol/L · atm) for oxygen dissolving in blood is 3.74 x 10–2 mol/(L atm) at body temperature, 37°C. Calculate the molar concentration of oxygen in blood for a scuba diver where the air pressure is 2.0 atm. The mole fraction of oxygen in air is 0.209.
0.11 M |
2.7 x 10–3 M |
1.3 x 10–2 M |
1.6 x 10–2 M |
7.8 x 10–3 M |
C = k Pgas
partial pressure of oxygen in that air is = molefraction * Air pressure
= 0.209*2.0 atm
= 0.418 atm
C = 3.74*10^-2*0.418
= 1.6*10^-2 M