How many moles are in a sample of 4.57x10^24 atoms of neon? 7.59 27.5 91.4 151

Question

asked Dec 22, 2021 234k views

2 Answers

Cbranch · Answer 1 · 2021-12-26T16:45:35+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

$n = \frac{4.57 * {10}^(24) }{6.02 * {10}^(23) } \\ = 7.591362...$

We have the final answer as

Hope this helps you