Oblicz zawartość perocentową pierwiastków C2H2Br2 C2H2Br4

1) C2H2Br2   %C = (2*12)/(2*12+2+2*80)*100% =12,9% %H = 2/186*100%=1,08% %Br = 160/186*100% = 86,02%   2) C2H2Br4   %C = 24/346*100% = 6,94% %H = 2/346*100% = 0,58% %Br = 320/346*100% = 92,49%