Verified answer

n=V/Vm

Vm=22.4

A-3

n=4.48/22.4=0.2 моль

Б-4

n=2.24/22.4=0.1 моль

В-2

n=11.2/22.4=0.5 моль

Г-1

n=33.6/22.4=1.5 моль