Question

No of atoms in 32 gram of oxygen?

Answer 1

Answer:

12.044 × 10^23 atoms...

Explanation:

as number of moles are 2,

n= 32÷ 16 = 2moles.

1 mole have 6.022 ×10^23 atoms

2 moles have double of it..

Answer 2

We find oxygen in nature in form o2

Hence given

Mass of oxygen =32g

Now, no. Of moles of oxygen =

Given mass /molecular mass

=32/32

No. Of moles = 1 mole

In oxygen molecule = 1 mole

=6.022×10^23 molecule

Hence no. Of atom in oxygen =

2×1×6.022×10^23

= 1.2044× ^24

That's your answer