Question

How many molecules of atoms of oxygen are present in 5.6litres of oxygen (O2) at NTP?

Answer 1

Answer:

1.505×10²³

Explanation:

1mol of O2 ===>22.4L

X mol of O2==>5.6L

X=5.6/22.4=0.25mol

moles=no of molecules/6.02×10^²³

n of molecule=0.25×6.02×10²³=1.505×10²³