Question

How many moles is 8.3 x 10^12 atoms or particles of Br2
urgent

Answer 1

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

We have

`n = \frac{8.3 * {10}^(12) }{6.02 * {10}^(23) } \\ \\ \\ \\ \: \: \: \: \: \: \: = 1.379 * {10}^( - 11) \: \: \: \: moles`

Hope this helps you