How many moles are in 2.16 x 1026 atoms of magnesium?*

Question

asked Feb 15, 2021 186k views

1 Answer

Barclay · Answer 1 · 2021-02-21T10:42:35+0000

Answer:

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

$n = \frac{2.16 * {10}^(26) }{6.02 * {10}^(23) } \\ = 358.80398671...$

We have the final answer as

Hope this helps you