試題詳解

 3. The aqueous solubility of O₂ 44.8 mL per liter. What is the molarity of O₂ in a standard water solution when the O₂ is under its normal partial pressure in air in 0.20 atm?
(A))1x10^-4 M 
(B)2x10^-4 M
(C)3x10^-4 M
(D)4x10^-4