) How many moles are there in 2.00 x 10^19 molecules of calcium phosphate?

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

Hope this helps you

c, liquids evaporate, creating a gas