You will need

- the density of air molar mass of air quantity of air, the volume occupied by the air

Instruction

1

Let us known the volume V, which takes the air. Then, by the well-known formula m = p*V, where p is the density of

**air**, we can find the mass of**air**in this volume.2

Density

At sea level at a temperature of 0oC the density

**of air**depends on its temperature. The density of dry**air**is calculated using the Clapeyron equation for an ideal gas according to the formula: p = P/(R*T) where P is the absolute pressure, T is the absolute temperature in Kelvin and R is the specific gas constant for dry**air**(R = 287,058 j/(kg*K)).At sea level at a temperature of 0oC the density

**of air**equal to at 1.2920 kg/(m^3).3

If we know the amount of

**air**, its mass can be found by the formula: m = m*V, where V is the amount of substance in moles, and M is the molar mass of**air**. Average relative molar mass**of air**equal to of 28.98 g/mol. Thus, substituting it in the formula, you get a lot**of air**in grams.