Question

Find the number of moles in 1.00 x 1023 atoms of chromium.

Answer 1

0.17 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{1.00 * {10}^(23) }{6.02 * {10}^(23) } = (1)/(6.02) \\ = 0.166112`

We have the final answer as

0.17 moles

Hope this helps you