Question

what is the mass of 0.2 mol of oxygen atom ​

Answer 1

Answer:

16 u = the mass of 1 mole of O2 atom. That is it weighs 16 g.

∴ Mass of 0.2 mole of O2 atoms = 16*0.2 = 3.2u

Answer 2

Explanation:

This is your answer......