Question

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

Answer 1

There are exactly 7.59 moles in a sample of 4.57x10^24 atoms of neon

Step-by-step explanation:

Just took the test

Answer 2

The answer is 7.59 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{4.57 * {10}^(24) }{6.02 * {10}^(23) } \\ = 7.591362...`

We have the final answer as

7.59 moles

Hope this helps you