Answer:
You would get 19.969 moles.
Explanation:
1 mole of any substance contain Avogadro's number of molecules so we can calculate the number of moles by dividing the provided number of atoms over Avogadro's number to obtain the number of moles
Answer : 19.9 moles of phosphorus
Solution : Atoms / Avogadro's number (6.022 x 10²³ atoms/mol)
1.20 x 10²⁵ atoms / 6.022 x 10²³ = 19.969
