Question

Define Avogadro's constant.

Answer 1

The no:of particles present in 1 mole of any substance is fixed , which is 6.022 × 10²³.

This fixed value is known as the Avogadro constant or Avogadro no: .


The no:of particles can be anything - molecules , ions , atoms..


1 moles of (any substance) = has 6.022 × 10²³ atoms / molecules / ions

Answer 2

One mole is a collection of 6.022 ×10²³ particles, be the atoms, molecules, ions , electrons, photons or any other things.

This value of 6.022 ×10²³ is the Avogadro's number.

This is known as Avogadro's number because in the honour of Sir Amedeo Avogadro .

=> He is famous for his theory of moles and Avogadro's law .

★ Avogadro number is also called Avogadro constant because it represents a specific number of items and does not depend on the items .

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