How many moles of chlorine are in a sample containing 4.5×10^14 chlorine atoms?

Question

asked Feb 20, 2023 114k views

1 Answer

Hitmands · Answer 1 · 2023-02-26T22:10:01+0000

Answer:

$\huge{7.475 * {10}^( - 10) \: \: moles}$

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

N = 4.5×10^14 chlorine atoms

We have

$n = \frac{4.5 * {10}^(14) }{6.02 * {10}^(23) } = 7.475 * {10}^( - 10) \\$

We have the final answer as

$7.475 * {10}^( - 10) \: \: moles$

Hope this helps you