The partial pressure of nitrogen in the atmosphere is 0.7829 arm and the partial pressure of carbon dioxide is 0.0015 atm and water vapor is 0.0089 atm, what is the partial pressure of oxygen at sea level (STP= 1atm)
To find the partial pressure of oxygen at sea level, we need to subtract the partial pressures of nitrogen, carbon dioxide, and water vapor from the total atmospheric pressure at sea level (1 atm).
First, let's add up the partial pressures of nitrogen, carbon dioxide, and water vapor:
Partial pressure of nitrogen = 0.7829 atm
Partial pressure of carbon dioxide = 0.0015 atm
Partial pressure of water vapor = 0.0089 atm
Total partial pressure of other gases = Partial pressure of nitrogen + Partial pressure of carbon dioxide + Partial pressure of water vapor
Total partial pressure of other gases = 0.7829 atm + 0.0015 atm + 0.0089 atm = 0.7933 atm
Now, we can find the partial pressure of oxygen:
Partial pressure of oxygen = Total atmospheric pressure - Total partial pressure of other gases
Partial pressure of oxygen = 1 atm - 0.7933 atm = 0.2067 atm
Therefore, the partial pressure of oxygen at sea level is 0.2067 atm.