Question

what is avogrado number ? ​

Answer 1

Answer:

Avogadro's number, number of units in one mole of any substance (defined as its molecular weight in grams), equal to 6.022140857 × 1023. The units may be electrons, atoms, ions, or molecules, depending on the nature of the substance and the character of the reaction (if any). See also Avogadro's law.

Answer 2

Answer:-

The number of elementary particles present in 1 mole of substance is called Avogadro's Number.

Its value at NTP is $\rm{6.023 \times {10}^{23}}$

$\large{\rm{Number\:of\:moles = \frac{No.\:of\:particles}{Avogadro's \:Number}}}$

$\large{\sf{\underline{More\:to\:know:-}}}$

$\rm{\underline{Mole\:concept:-}}$

The term "Mole" was introduced by Ostwald which means heap. It is 7th SI unit of "Amount of Substance" .

" 1 mole is the amount of substance that contains as many elementary particles as there are atoms in 12 gram of Carbon -12 . "

Relation between 1 Mole and Avogadro's Number :-

1 Mole = $\rm{6.023 \times {10}^{23}\:particles}$