Q.

What is the value of the Avogadro number?

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a

6.22 x 1023

b

6.022 x 1023

c

5.011 x 1022

d

12.44 x 1023

answer is A.

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Detailed Solution

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Avogadro's number is the number of units in one mole of any substance. It is defined as its molecular weight in grams which is equal to 6.02214076 × 1023. One mole contains 6.02214076 × 1023 elementary entities which may be an atom, a molecule, an ion, an electron, any other particle, or a specified group of particles. 

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