Question

How many moles would 9.02 x 10^25 molecules of HCI equal?

Answer 1

The answer is 149.83 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 = 9.02 × 10^25 molecules of HCI

We have

`n = \frac{9.02 * {10}^(25) }{6.02 * {10}^(23) } \\ = 149.83388704...`

We have the final answer as

149.83 moles

Hope this helps you