Question

if one mile of O2 are there in 1.20*10^22 oxygen?​

Answer 1

Answer:

One mole of oxygen contains 6.022 × 1023 molecules. 1.20 × 1022 molecules of oxygen contain = 1.20 × 1022 / 6.022 × 1023 = 0.01099 moles. Hence, 1.20 × 1022 molecules of oxygen contain 0.0199 moles of oxygen.