Question

How many moles of CO2 are there in 8.91 x 1023 molecules of CO2?
(1 mole= 6.02 x 1023)

Answer 1

1.48 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{8.91 * {10}^(23) }{6.02 * {10}^(23) } = (8.91)/(6.02) \\ = 1.480066...`

We have the final answer as

1.48 moles

Hope this helps you