Calculate the solubility of hydrogen in water at an atmospheric pressure of 0.440 atm (a typical value at high altitude).

Atmospheric Gas	Mole Fraction	kH mol/(L*atm)
N2	7.81 x 10-1	6.70 x 10-4
O2	2.10 x 10-1	1.30 x 10-3
Ar	9.34 x 10-3	1.40 x 10-3
CO2	3.33 x 10-4	3.50 x 10-2
CH4	2.00 x 10-6	1.40 x 10-3
H2	5.00 x 10-7	7.80 x 10-4