Created By : Rina Nayak

Reviewed By : Rajashekhar Valipishetty

Last Updated : May 15, 2023

Do you want to Calculate Molecular Mass using GMV Law? If yes, then stay on this page. Below mentioned simple calculator tool allows to input density of the gas, and the density of Hydrogen. After giving the correct data, hit the calculate button to acquire the result in a short time.

Density of Gas
Density of Hydrogen
Molecular Mass with GMV law

### Molecular Mass Definition | Define GMV Law?

The molecular mass of a chemical substance is defined as the total of atomic masses of all the atoms that are included in the molecule. It is used for the substances whose constituent particles are molecules.

Example:

Molecular mass of CO2 = (1 x atomic mass of C) + (2 x atomic mass of O)

= 12 + 32 = 44

GMV acronym is Gram Molar Volume. The volume taken by 1 mole of a gas particle at STP conditions is called GMV. It states that evey gas particle has a fixed number of molecules in a particular fixed volume at a given temperature and pressure or standard conditions.

### Molecular Mass with GMV Law Formula

The formula to find the molecular mass of a gas using GMV law is mentioned here:

Gas particle Molecular Mass Using GMV Law = 2 x Vapour density

= 2 x (Density of gas / Density of Hydrogen)

Vapour density = Density of gas / Density of Hydrogen

### How to Calculate Molecular Mass using GMV Law?

Go through the simple guidelines for finding the molecular mass of a gas particle with GMV law.

• Obtain the gas density, density of Hydrogen.
• Divide density of gas by density of HYdrogen.
• Double of the result is the Molecular Mass.

Example:

What is the Molecular Mass with GMV law? If the gas density is 15 and density of Hydrogen is 1.5?

Solution:

Given that,

Density of the gas = 15

Density of Hydrogem = 1.5

Gas particle Molecular Mass Using GMV Law = 2 x (Density of gas / Density of Hydrogen)

= 2 x (15/1.5)

= 10

### FAQ's on Calculating Molecular Mass using GMV Law

1. What is GMV law?

GMV stands for Gram Molar Volume. As per GMV, every gas contains a fixed number of molecules in a particular fixed volume at a given pressure and temperature under standard conditions.

2. How to calculate molecular mass?

To find the molecular mass of a chemical compound, multiply the number of atoms times the atomic mass of that element and add the weights of all elements in the molecule.

3. What is the molecular mass of a chemical particle formula?

The formula to find the molecular mass of a chemical particle using gram molecular volume is Molecular Mass = 2 x (Density of gas/Density of Hydrogen).

4. What is the molecular mass of H2O?

The molecular mass of water is 18.01528 g/mol.