Question

A sealed flask contains 100.0 mL H2O under 10.0 atm of total gas pressure. The gases above the water are N2 (5.1 atm), H2 (2.1 atm), and O2 (2.8 atm). If the mass of dissolved oxygen is 11.5 mg, what is the Henry’s law constant of O2?

a. 1.14 x10-2 M/atm b. 1.28 x10-3 M/atm c. 4.11 x10-2 M/atm d. 3.59 x10-4 M/atm e. 1.78 x10-4 M/atm (answer is B) how do you solve?

Answer 1