Air is a mixture of several gases, and therefore, it does not have a single chemical formula. The primary components of air are nitrogen (N₂) and oxygen (O₂), which make up about 99% of the air. The remaining 1% consists of trace gases such as argon (Ar), carbon dioxide (CO₂), and water vapor (H₂O).
Here is the approximate composition of dry air:
- Nitrogen (N₂): 78%
- Oxygen (O₂): 21%
- Argon (Ar): 0.93%
- Carbon Dioxide (CO₂): 0.04%
- Trace amounts of other gases: 0.03%
Since air is a mixture, its composition can vary slightly depending on the location, altitude, and environmental conditions. However, the proportions mentioned above are generally consistent for dry air at sea level.