Question

why is avagadro number? atoms and molecules​

Answer 1

Answer:

Avogadro's number is defined as the number of elementary particles (molecules, atoms, compounds, etc.) per mole of a substance. It is equal to 6.022 × 1023 mol-1and is expressed as the symbol NA.

Answer 2

Avogadro's number is an absolute number: there are 6.022×1023 elementary entities in 1 mole.

With Avogadro's number, scientists can discuss and compare very large numbers, which is useful because substances in everyday quantities contain very large numbers of atoms and molecules.

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