1. Understand Density:
* Density is the mass of a substance per unit volume.
* Air has a density that varies depending on temperature, humidity, and altitude.
* At standard temperature and pressure (STP), the density of dry air is approximately 1.29 g/L.
2. Use the Density Formula:
* Density (ρ) = Mass (m) / Volume (V)
3. Rearrange to Solve for Volume:
* Volume (V) = Mass (m) / Density (ρ)
4. Plug in the Values:
* V = 100 g / 1.29 g/L
* V ≈ 77.52 L
Therefore, approximately 77.52 liters of air at standard temperature and pressure have a mass of 100 grams.
