I recently did an experiment where acetone was heated in a water bath to vaporise it. The acetone was in a Dumas flask and excess vapour escapes through the capillary. I assumed any air in the flask would be expelled before the acetone vapour because air is less dense than acetone.
Acetone liquid has density 0.79g per cm^3 and air is 1.2kg per m^3. how can i find out the density of acetone vapour