1 Answer

Richard Deeming · Answer 1 · 2022-12-07T06:22:46+0000

Answer:

0.50 moles

Step-by-step explanation:

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

We have

$n = \frac{3 * {10}^(23) }{6.02 * {10}^(23) } = (3)/(6.02) \\ = 0.49833...$

We have the final answer as

Hope this helps you