We’re being asked to determine Henry’s law constant for radon (Rn) gas at 30 ˚C.
Recall that the solubility of a gas is given by Henry’s law:
where Sgas = solubility of the gas (in mol/L or M), kH = Henry’s law constant for the gas, Pgas = partial pressure of the gas.
The presence of the radioactive gas radon (Rn) in well water presents a possible health hazard in parts of the United States.
Assuming that the solubility of radon in water with 1 atm pressure of the gas over the water at 30 oC is 7.27 10 - 3 M, what is the Henrys law constant for radon in water at this temperature?
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