Molar Volume Calculator
Handy Molar Volume Calculator is designed to give the molar volume of a substance easily. All you have to do is enter the atomic weight, molar mass and density of the substance in the input section to check the molar volume quickly.
Molar Volume Calculator: Finding the molar volume of a substance is not difficult with the help of our free calculator. On this page, you can see the details like what is the molar volume, how to calculate it. Also, check the example questions, molar volume formula and others for a better understanding of the concept.
Steps to Calculate Molar Volume
Have a look at the simple process of the determining the substance molar mass in a solution.
- Check the atomic weight, molar mass and density.
- Multiply the atomic weight with the molar mass
- Divide the product by density to know the molar volume.
What is Molar Volume?
The molar volume of a substance is the volume occupied by one mole of the substance at a given temperature and pressure. It is equal to the molar mass divided by the mass density.
AT STP, the molar volume is the volume occupied by one mole of a chemical compound. The SI unit of molar volume is cubic metres per mole.
Molar Volume Formula
The molar volume of a substance is directly proportional to the molar mass and inversly proportional to the mass density.
The molar volume formula at STP is expressed as
Vm = Molar mass/density
Where,
Vm is the molar volume
The standard temperature is 273 K or 0°C
Standard pressure is 1 atm or 760 mm Hg
Molar Volume Example:
Question: Calculate the molar volume for a sample of the molar mass of N2. If the gas density is 1.25 g/L?
Answer:
Given that,
Density of gas = 1.25 g/L
Molar mass of Nitrogen = 28.01 g/mol
Molar volume is Vm = Molar mass/density
= 28.01/1.25
= 22.408
Therefore, molar volume of N2 is 22.408 L.
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Frequently Asked Question's on Molar Volume Calculator
1. How is molar volume calculated?
To get the molar volume of a substance, you have to know the atomic weight, molar mass and density. Multiply the molar mass with the atomic weight. Divide the product by the density to see the substance molar volume.
2. What is the molar volume of water?
At STP conditions, water occupies 1 cc per gram space. 1 mole of water weight is 18 grams. So, the molar volume of water is 18 cc.
3. What is the molar volume formuula?
The molar volume formula is Molar volume = (Atomic weight * Molar mass)/Density.
4. What is meant by molar volume?
Molar volume is defined as the volume of one mole of substance at a specific temperature and pressure.