Respuesta :

Answer:

8.05 x 10^25 atoms O

Explanation:

moles O = moles Al2(CO3)3 x (6 moles O/1 mol Al2(CO3)3) = 22.3 x 6 = 133.8 moles O

atoms O = moles O x Avogadro number = 133.8 x 6.02 x 10^23 = 8.05 x 10^25 atoms O