The henry’s law constant for he gas in h2o at 30℃ is 3.7 × 10−4 m/atm; that for n2 at 30℃ is 6.0 × 10−4 m/atm. if a gaseous he-n2 mixture that has a he mole fraction of 0.30 is placed over the waterthe concentration of dissolved he will be greater than that of dissolved n2.the concentration ratio of dissolved he to dissolved n2 would be 0.62.the concentration ratio of dissolved he to dissolved n2 will be 0.26.the concentration ratio of dissolved he to dissolved n2 will be 0.18.the concentration ratio of dissolved he to dissolved n2 will be 0.49.