Mole is a unit of numbers, just like dozen. One mole is equal to 6.02 × 1023 items.
So, one mole of gold is equal to 6.02 × 1023 atoms of gold
One mole of water is equal to 6.02 × 1023 molecules of water.
Therefore, the numbers of molecules are ...
A mole of gold is compared to a mole of water. A discussion of what these two have in common is provided.