# Problem: 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?

###### FREE Expert Solution

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:

$\overline{){{\mathbf{S}}}_{{\mathbf{gas}}}{\mathbf{=}}{{\mathbf{k}}}_{{\mathbf{H}}}{{\mathbf{P}}}_{{\mathbf{gas}}}}$

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.

###### Problem Details

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?