What volume of water, in mL, is needed to dissolve 8.7 mg of carbon monoxide gas when the partial pressure of carbon monoxide above the water is 1.6 atm at 25 °C? The Henry's constant for carbon monoxide gas in water at 25 °C is 9.5×10-4 M/atm.

Answer 1

C = KcP
Substitute and solve for C.
Then C, in mol/L. You convert 8.7 mg to mols. That gives you mols and M, solve for L and convert to mL.