Question

There are ______ moles in 3.73 x 1023 formula units of barium chloride.

Answer 1

0.62 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{3.73 * {10}^(23) }{6.02 * {10}^(23) } = (3.73)/(6.02) \\ = 0.619601...`

We have the final answer as

0.62 moles

Hope this helps you