Answer:
[tex] \huge 2.541 \times {10}^{16} \: \: moles \\ [/tex]
Explanation:
To find the number of moles in a substance given it's number of entities we use the formula
[tex]n = \frac{N}{L} \\[/tex]
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
[tex]n = \frac{1.53 \times {10}^{40} }{6.02 \times {10}^{23} } \\ \\ = 2.541 \times {10}^{16} \: \: moles[/tex]
Hope this helps you
