Question

Describe how Avogadro's number is related to a mole
of any substance?
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Answer 1

Explanation:

Avogadro's number is a proportion that relates molar mass on an atomic scale to physical mass on a human scale. 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-1 and is expressed as the symbol NA.

Answer 2

Answer:

1. Avogadro's number or Avogadro's constant is 6.022 x 10²³. One mole of a substances contains 6.022 x 10²³.
2. It is used to convert mass into number of particles or vice versa. For example: If one mole of a substance contains 6.022 x 10 ²³ particles then 2 moles of a substance contains 6.022 x 10²³ x2 which equals to 12.044 x 10²³, 3 moles contains 18.066 x 10²³ particles.
3. Avogadro number was given by Amadeo Avogadro an Italian chemist in 1811.
4. Avogadro's number is only valid when the temperature and pressure remains constant.

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