What numerical value is known as Avogadro's number?

Avogadro's number is defined as the number of constituent particles, typically atoms or molecules, found in one mole of a substance. This fundamental constant is crucial in chemistry as it allows for the conversion between the macroscopic scale of materials and the atomic scale. The accepted value of Avogadro's number is precisely 6.022 × 10²³ particles/mol.

This value plays a significant role in stoichiometry, enabling chemists to calculate the number of particles in a given mass of substance. For example, if you know the mass of a sample and its molar mass, you can use Avogadro's number to find how many molecules or atoms are present. The other values provided do not correspond to the established definition and empirical findings regarding Avogadro's number, which has been extensively verified through experimental methods in chemistry.