Answer
2.6 atm
Work Step by Step
Because the question is dealing with solubility and pressure, we need to use Henry's law, in which solubility (S) of a gas in a liquid is directly proportional to the pressure (P) of the gas above the liquid.
Plug the known values into Henry's law and solve for the unknown solubility with the different pressure. Notice a higher solubility demands an increased pressure, making the answer we obtained reasonable.
