How many moles are in 2.5 * 10^20 iron atoms?

Question

asked Sep 4, 2021 149k views

1 Answer

Lokomotywa · Answer 1 · 2021-09-09T20:19:00+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

$n = \frac{2.5 * {10}^(20) }{6.02 * {10}^(23) } \\ = 0.000415282...$

We have the final answer as

Hope this helps you