Question

How many moles make up 5.7491x1025 molecules of Dinitrogen pentoxide (N2O5)?

Answer 1

Answer:

95.5 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

$n = \frac{5.7491 \times {10}^{25} }{6.02 \times {10}^{23} }$

We have the final answer as

95.5 moles to 3 sig. figures

Hope this helps you