Question

1. How many moles of magnesium is 3.01 x 10^23 atoms of magnesium?

Answer 1

0.5 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

From the question we have

`n = \frac{3.01 * {10}^(23) }{6.02 * {10}^(23) } = (3.01)/(6.02) = 0.5 \\`

We have the final answer as

0.5 moles

Hope this helps you