qvet

CH4

Mr = 16

M = 16

m = 64

V = 89.6

N = 24 * 10^23

SO2

Mr = 64

M = 64

m = 160

V = 56

N = 15 * 10^23

O3

Mr = 48

M = 48

m = 192

V = 89.6

N = 24 * 10^23