help with 5&6

The solubility of O2 in water is 5.7mg/L at an atmospheric pressure of 1.00atm and temperature of 40C. Calculate the Henry's law constant of O2 at 40C. The mole fraction of O2 in air is 0.212. kHofO2= Question 6 Hydraulic fracturing, or "fracking," allows methane gas to be extracted from otherwise inaccessible shale formations. Scientists estimate that about 2.3% of the methane produced is lost to the atmosphere, where it behaves as a greenhouse gas. a. Calculate the solubility (g/L) of methane in water under a pure methane atmosphere of 1.0atm. (The Henry's law constant for methane in water is approximately 1.5103mol/(Latm) at 20C and 1.0atm.) solubility of methane in water = b. Calculate the maximum solubility (g/L) of methane in water under an atmosphere or air that contains 1.89104% methane gas (CH4). solubility of methane in air =