p=Vp/Vimpur*100 => Vp=p*Vimp/100=80*224/100=179,2cm³ pur C2H2
n=V/Vm=179,2/22,4=8 mmoli C2H2
C2H2 + 2Br2 = C2H2Br4
1 mmol C2H2............2 mmoli Br2
8 mmoli C2H2..........x=16 mmoli Br2
m Br2=16*160=2560mg
C=md/ms*100 => ms=md*100/C=256000/3=85333,333mg=85,333g sol Br2