a gaseous mixture of nitrogen and oxygen has a total pressure of 770 torr. the partial pressure of nitrogen is 700 torr. what is the partial pressure of oxygen?
ptotal = pN2 + pO2
To find the partial pressure of oxygen in the gaseous mixture, we need to first subtract the partial pressure of nitrogen from the total pressure.
The partial pressure of nitrogen is given as 700 torr, and the total pressure of the mixture is given as 770 torr.
To find the partial pressure of oxygen, we can use the formula:
Partial pressure of oxygen = Total pressure - Partial pressure of nitrogen
Partial pressure of oxygen = 770 torr - 700 torr
Partial pressure of oxygen = 70 torr
Therefore, the partial pressure of oxygen in the gaseous mixture is 70 torr.