5.6 moles of gold contain how many atoms

3.37232 x 10²⁴ atoms.

Step-by-step explanation:

Using that Avogadro's number, one mole of substance contains

6.022 x 10²³.

So, 5.6 moles now will give you exactly 5.6 x 6.022 x 10²³

= 3.37232 x 10²⁴ atoms.

33.712 * 1023 atoms

Step-by-step explanation:

You use the fact that 1 mole of any substance contains exactly 6.022⋅1023 atoms or molecules of that substance - this is known as Avogadro's number. In your case, 1 mole of gold will have exactly 6.022⋅1023 atoms of gold. In other words, In one mole of anything, there are 6.02x10^23 substituents (ie, one mole of atoms has 6.02x10^23 atoms). So, 5.6 mols * 6.02x10^23 atoms/mole = 33.712 x 10^23 atoms,