Respuesta :

0.249 moles

Explanation:

Given:

No. of atoms= 1.50 X 10^23 atoms

NA= 6.022 X 10^23 atoms

To Find:

Moles= ?

Solution:

Mole = No. of atoms/NA

= 1.50 X 10^23/6.022 X 10^23

= 0.249 moles