Or actually, in our case, this should be molecules. Molecules per mole, times one point eleven moles of water. So the moles cancel and we're left with 6.68 times tens of 23 molecules of water. So this is how many molecules are found in 20 grams of water. Now, suppose I asked the question, how many atoms are found in 20 grams of water? Well, that means we take this number and multiply it by three.