a) nO2=19,2/ 32=0,6 mol
-->V=n. 22,4=0,6. 22,4=13,44 L
b)nN2=11,2/ 28=0,4 Mol
V=0,4. 22,4=8,96 L
c) nCl2=5,68/ 71=0,08 mol
V Cl2=n. 22,4=0,08. 22,4=1,792 L
d) nCo=2,52/(12+16)=0,09 mol
V=0,09. 22,4=2,016 L
e) nC02=7,04/ 44=0,16 mol
V=0,16. 22,4=3,584 L