Question

Question #9142e

Answer 1

`3.0110705 xx 10^24`

Explanation:

The number of atoms per 1 mole of any element is defined by Avogadro’s number `6.0221409 xx 10^23 mol^(-1)`

So to calculate the number of sodium atoms in 5 moles of sodium, we just multiply Avogadro’s number by 5.

`6.0221409 xx 10^23 xx 5 = 3.0110705 xx 10^24`