Question

How many moles of dinitrogen monoxide are present in 9.3 x 10^22 molecules of this compound?

Answer 1

Answer:

0.15 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

$n = \frac{9.3 \times {10}^{22} }{6.02 \times {10}^{23} } \\ = 0.154485...$

We have the final answer as

0.15 moles

Hope this helps you