Answer:
21.39kPa
Step-by-step explanation:
To calculate the partial pressure of oxygen, we need to use Dalton's law of partial pressures which states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of the individual gases.
The total pressure is given as 22 kPa, which includes the pressure of water vapor. The pressure of water vapor needs to be subtracted from the total pressure to get the partial pressure of oxygen.
Partial pressure of oxygen = Total pressure - Pressure of water vapor
Pressure of water vapor = 0.61 kPa (given)
Total pressure = 22 kPa (given)
Partial pressure of oxygen = 22 kPa - 0.61 kPa = 21.39 kPa
Therefore, the partial pressure of oxygen is 21.39 kPa.