Question

Question #ff8b4

Answer 1

`4.5665 * 10^-5` moles

Explanation:

Your working out doesn't seem to make sense. This is not a difficult problem, if you just calculate the number of protons, then convert the amount to moles.

There are `11` protons in a sodium atom, so the are `2.50` x `10^18` x `11` protons altogether: `2.75` x `10^19` protons.

Number of moles: `(2.75 * 10^19)/( 6.022 * 10^23)`

`4.5665 * 10^-5` moles