Explanation:
Given that the no. of molecules of CO₂ is 3.01 × 10²².
We're given to find the no. of moles in this no. of CO₂.
We may know that,
No. of moles = Given no. of molecules / Avogadro Number
And we know Avogadro Number N_AN
A
= 6.02 × 10²³.
(Avogadro Number is taken as 6.02 × 10²³ according to the no. of molecules given in the question.)
So no. of moles equals,
(3.01 × 10²²) / (6.02 × 10²³) = 1 / 20 = 0.05 mole