Henry's law states that :
where p = partial pressure of the gas above the solution.
is the Henry's solubility constant for the solvent & solute at given T°C
c = molar concentration of the solute in the solution in moles/Litre at given T°C
p = 1 bar and
c = 1 / 71.18 * 10³ = 14.048 mol/Litre
concentration = 14.048 mol/Litre or 28.096 gms/Litre