How many molecules are 4.3 x 10^27 molecules of N2O5

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

We have the final answer as

Hope this helps you

i think it is true since you can test the answer and can use observations to complete it.