# Weight of air

A living room has floor dimensions of $3.5 \text{ m and } 4.2 \text{ m}$ and a height of $2.4 \text{ m.}$ What does the air in the room weigh when the air pressure is $1.0 \text{ atm?}$

The density of air is $\rho = 1.21 \text{ kg/m}^{3}$.
The gravitational acceleration is $g= 9.8 \text{ m/s}^{2}.$

×