Answer:
18.066 × 10²³ atoms
Explanation:
Given data:
Number of atoms of Mg = ?
Number of moles of Mg = 3 mol
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
1 mole = 6.022 × 10²³ atoms
3 mol × 6.022 × 10²³ atoms / 1mol
18.066 × 10²³ atoms
