A room is 5 m long, 7 m wide, and 5 m high. What is the mass of the air it contains, if the density of air is 1.3 kg/m3?

Question

Enter your answer in scientific notation.

Answer 1

Find the volume of the room, then multiply the volume by the density of air. That will give the mass of the air in the room. You know the dimensions of the room, so you can easily compute the volume; and you know the density of the air. Just do the math.