what is the partial pressure of N2 in the mixture of N2 and O2 having a total pressure of 1075 torr if the partial pressure of O2 is 720 torr?
To find the partial pressure of N2 in the mixture, we need to subtract the partial pressure of O2 from the total pressure.
Given information:
Total pressure = 1075 torr
Partial pressure of O2 = 720 torr
To find the partial pressure of N2:
1. Subtract the partial pressure of O2 from the total pressure:
Partial pressure of N2 = Total pressure - Partial pressure of O2
Partial pressure of N2 = 1075 torr - 720 torr
Partial pressure of N2 = 355 torr
Therefore, the partial pressure of N2 in the mixture is 355 torr.
Dalton's law of partial pressures tells us Ptotal = sum of partial pressures or
Ptotal = PN2 + PO2. You know Ptotal and PO2. Looks simple enough to solve for PN2