Question

How many moles is 1.7 x 10^25 atoms of magnesium

Answer 1

28.24 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{1.7 * {10}^(25) }{6.02 * {10}^(23) } \\ = 28.2392...`

We have the final answer as

28.24 moles

Hope this helps you