Question

find weight of one atom of oxygen​

Answer 1

Answer:

O2 is a diatomic molecule. The mass of an oxygen atom = 16 amu. ∴ Mass of O2 molecule = 2 × 16 = 32 amu.

Answer 2

Answer:

Correct option is

B

2.66×10

−23

g

Atomic weight of oxygen=16g/mol

1 mol oxygen atom contains 6.023×10

23

=16g

Mass of ⇒6.023×10

23

oxygen atoms =16g

Mass of 1 atom of oxygen =

6.023×10

23

16g

= 2.66×10

−23

g

Explanation:

. Thus, oxygen was assigned an atomic mass of 16. We now know that a hydrogen atom has a mass of 1.6735 x 10-24 grams, and that the oxygen atom has a mass of 2.6561 X 10-23 grams.