What is the formula of Vapour density of gas?

vapour density = mass of n molecules of gas / mass of n molecules of hydrogen. (and thus: molar mass = ~2 × vapour density) For example, vapour density of mixture of NO2 and N2O4 is 38.3 .

What is the Vapour density of a gas whose density?

4.6. 3 Vapor Density. Vapor density is the weight of a volume of pure vapor or gas compared to an equal volume of dry air at the same temperature and pressure. It is obtained by dividing the molecular weight of the vapor by the average molecular weight of air thus, it is unitless.

What is relation between density and Vapour density?

The key difference between density and vapour density is that the term density measures the mass per unit volume of any substance that can be a solid, liquid or a gas whereas the term vapour density refers to the density of vapour of a substance in relation to the density of the vapour of hydrogen.

Is the molecular mass of a gas is 224 then the density of a gas at STP is?

Molar mass = 2 x 22.4 = 44.8 g/mol. So, the molar mass of the gas is 44.8 g/mol. So, the density of the gas is 2 g/L.

What does vapor density tell you?

The relative weight of a gas or vapor compared to air, which has an arbitrary value of one. If a gas has a vapor density of less than one it will generally rise in air. If the vapor density is greater than one the gas will generally sink in air.

Is vapour density and density of gas same?

Vapour density is the same thing as density.

How will you establish the relation between vapour density and molecular mass of a gas by applying Avogadro’s law?

We already know about Avogadro’s law which states that “At same temperature and pressure, equal volume of all gases will have the same number of molecules”. Deriving relation between vapor density and molecular mass of a gas: V.D =mass of n molecules of gas or vapormass of n molecules of hydrogen gas.

What is the Vapour density of co2?

22
In this question, the vapour density of the carbon dioxide is equal to the molecular weight of carbon dioxide divided by 2. Hence the vapour density of the carbon dioxide is 44 divided by 2 which is equal to 22.

What is the density of a gas at STP that has a molar mass?

A. Density of a gas at STP. The formula D= M/V is used at STP with M being equal to the molar mass and V being molar volume of a gas (22.4 liter/mole).