Question

11. How many moles are in 7.14 X 10 35
molecules of 02?

Answer 1

The answer is 1.186 × 10¹² 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 = 7.14 × 10^35 molecules of O2

We have

`n = \frac{7.14 * {10}^(35) }{6.02 * {10}^(23) } \\`

We have the final answer as

1.186 × 10¹² moles

Hope this helps you