How many atoms are in 3.0 moles of na?

Avogadro's number is the number of atoms in one mole of a substance. The number is 6.022 x 10^23 atoms/mol. So, if you have 1 mole of carbon atoms, there will be 6.022 x 10^23 atoms in that sample.

Hope this helps

hi,

the capital city of australia is canberra.

i'm assuming that the correct answer is indeed the first one/ "a"..