Answer to Question #110129 in General Chemistry for Anastasia

Question

If you want an equal number of atoms as 12g of carbon, what mass of oxygen should you use?

Answer 1

Solution.

One mole of C atoms = 12 grams;

One mole of C atoms = 6.022 ×10²³ C atoms;

n(O₂) = m/M; $\implies$ m(O₂) = n(O₂)×M (O₂); n(O₂) = 1M;

m(O₂) = 1 M×32 g/M =32g;

Answer: m(O₂) = 32g.