Answer:
The answer is
4.33 × 10²⁴ Fe atoms
Explanation:
To find the number of atoms in an element given it's number of moles we use the formula
N = n × L
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
n = 7.2 mol
The number of atoms in iron ( Fe) is
N = 7.2 × 6.02 × 10²³
We have the final answer as
4.33 × 10²⁴ Fe atoms
Hope this helps you
