Question

How many molecules are 4.3 x 10^27 molecules of N2O5​

Answer 1

Answer:

7142.86 moles

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

$n = \frac{N}{L}$

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 we have

$n = \frac{4.3 \times {10}^{27} }{6.02 \times {10}^{23} } \\ = 7142.857...$

We have the final answer as

7142.86 moles

Hope this helps you