3. How many moles of silver is 8.46x1024 atoms of
silver?

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

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

We have the final answer as

Hope this helps you

i'm assuming that it's c.) red bank..

it's filtration, but this is an assumption so my apologies if i got this