Question

3. How many atoms are there in 1.3 x 1024 molecules of nitrogen dioxide?

Answer 1

There are
`3.9*10^2^4` atoms in
`1.3*10^2^4` molecules of nitrogen dioxide.

Step-by-step explanation:

There are three atoms in 1 molecule of Nitrogen dioxide
`NO_(2)`. One Nitrogen and two oxygen atoms.

So,

1 molecule of
`NO_(2)` has 3 atoms

`1.3*10^2^4` molecules have

`(3 atoms*1.3*10^2^4molecules)/(1molecule)` =
`3.9*10^2^4 atoms`