Question

What amount (in moles) is 4.77 x 10(25) molecules?

Answer 1

`\huge{ \boxed{79.24 \: 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 = 4.77 × 10²⁵ molecules

We have

`n = \frac{4.77 * {10}^(25) }{6.02 * {10}^(23) } \\ = 79.23588`

We have the final answer as

79.24 moles