Question

Calculate the number of moles in 1.0 × 10^21 atoms​

Answer 1

0.0017 mole

Step-by-step explanation:

1 mole = 6.02 x 10^23 atoms

so the number of mole in 1.0 × 10^21 atoms is

(1.0 × 10^21)/(6.02 x 10^23) = 0.00166112956 or 0.0017 mole