# Question #d29a9

##### 1 Answer

Mar 17, 2016

#### Answer:

Gas partial pressures are additive and proportional to their concentrations. Thus, the oxygen partial pressure is the difference between the total pressure and the water partial pressure.

#### Explanation:

How accurate you need to be will determine whether you use the given water vapor pressure at 25'C or find the value at 27'C. Assuming for this answer that it either doesn't matter, or you made a typographical error in one of the numbers, the oxygen partial pressure would be 360 – 23.8 = 336.2 torr.