Answer:
Step-by-step explanation:
The number of atoms in one mole of a substance is called Avogadro's number and is approximately 6.022 x 10²³ atoms/mol.
There are 2.02 moles of atoms in one mole of a substance.
The number of atoms in one mole of Na (sodium) is 6.022 x 10²³ atoms/mol
In one mole of NaCl (sodium chloride), there are 6.022 x 10²³ atoms of sodium and 6.022 x 10²³ atoms of chlorine, for a total of 12.044 x 10²³ atoms.