MONTREAL SEPTEMBER FESTIVALS & Montreal EVENTS. Home | Accommodations | Attractions | Restaurants | Shopping & Services | Nightlife | Discover Areas | Site Map | What's New | About Us | Contact Us | Photography Credit | Advertise With Us | Terms Of Use| FranÃ§ais.
From Wikipedia, the free encyclopedia. Vapor density is the density of a vapour in relation to that of hydrogen. It may be defined as mass of a certain volume of a substance divided by mass of same volume of hydrogen. vapor density = mass of n molecules of gas / mass of n molecules of hydrogen. Therefore: vapour density = molar mass of gas / molar mass of H 2.
The physical density is the mass divided by the volume. The density of water at 4Â°C is, by definition, 1) The optical density is the index of refraction of the liquid. 3 people found this useful. Edit. Share to: 1  A Look at the Nitrogen Molecule Nitrogen molecules are everywhere. 2  You breathe them your entire life and you can't live without them.