I need help I don't understand this problem!?

Question

Calculate the mass ratio of the following properties for 1.0 kg of air versus 1.0 kg of iron at 25 degrees Celsius:

a) Mass

b) Volume

c) Density

Can you also please explain how you got the answer? Thanks!

Answer 1

density is mass / volume, so

volume is mass / density

The mass is given, and you can probably find the densities in an appendix of your textbook.  Make sure you use the density of air at 25 degrees Celsius for correct results.

The ratios are:

a) mass of air / mass of iron

b) volume of air / volume of iron

c) density of air / density of iron