What Is Avogadro's Number - The Mole | Chemical Calculations | Chemistry | FuseSchool

Learn the basics about Avogadro's Number, as a part of chemical calculations.

Avogadro’s Number or the Avogadro Constant is 6.02 X 1023 Mol-1. It is the number of atoms per mole of the carbon-12 isotope.

For atoms, the mass of Avogadro’s number of particles is equal to their relative atomic mass in grams.

For molecules, the mass of Avogadro’s number of particles is equal to their relative molecular mass in grams.

What is Molar Volume?
In 1811, Avogadro proposed his hypothesis which stated ‘Equal volumes of gases at the same temperature and pressure contain the same number of molecules’. This hypothesis made it much easier to perform calculations involving gases. So one mole (Avogadro’s number of molecules) of any gas will occupy the same volume, at the same temperature and pressure, as one mole of any other gas.

The volume occupied by one mole of a gas is called the Molar Volume.

Molar volume is measured in dm3mol-1.

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[Panthera]

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[aprilliarestira]

I worshipped whoever who made this, thankyou!

[helinduhansiragamage]

Thanks, it was very helpful.
I learnt many things.

[blmandar]

The video animation & content are just the audio is inaudible. Please make videos with a little higher volume.

[anastaciagurina]

why cant i finally understand this? i dont understand at all

[garimasinghal]

I want to ask that;
Can we write
The value of Avogadro no. is equal to a). 12 gms of carbon 12 atoms Or B). 6.022 x 10^23
Please answer

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[varshiniiyervarsha]

Y does we give 6.0223 constant for all the substances as there is differ in mass of eg:18grams =6.0223meansss then, 32grams =6.0223

[thawedmind]

one mole of oxygen gas is 16g? I am so confused

[byeungsinchun-]

how do you know one mole of oxygen has a mass of 32 grams