Question

how many atoms are in a 5 mol tank of NO2 gas

Answer 1

Answer:

may be...

Explanation:

In one molecule of NO2 there is one nitrogen atom and two oxygen atoms.

Answer 2

Answer:

$\sf 1~mol = 6.022 x 10^{23} atoms \\\\\sf 5~mol= 5x6.022x10^{23} = 30.11 x 10^{23} ~atoms$