Question

Avogadro’s number was calculated by determining the number of atoms in

Answer 1

Avogadro's number was calculated by determining the number of atoms in 12.00 g of carbon-12.

Answer 2

Answer is: 12 grams of the isotope carbon-12 (¹²C).

The Avogadro’s number is the number of atoms in 12 grams of the isotope carbon-12 (¹²C).

Na is Avogadro number or Avogadro constant (the number of particles, in this example carbon, that are contained in the amount of substance given by one mole).

The Avogadro number has value 6.022·10²³ 1/mol in the International System of Units; Na = 6.022·10²³ 1/mol.