a/
+ CO
%mC = \(\frac{12}{12+16}.100\%=42,86\%\)%mO = 100% - 42,86% =57,14%+CO2
%mC = \(\frac{12}{12+16.2}.100\%=27,27\%\) %mO = 100% - 27,27% = 72,73%b/
+Fe3O4
%mFe = \(\frac{56.3}{56.3+16.4}.100\%=72,41\%\) %mO = 100% - 72,41% = 27,59%+ Fe2O3
%mFe = \(\frac{56.2}{56.2+16.3}.100\%=70\%\) %mO = 100% - 70% = 30%c/
+SO2
%mS = \(\frac{32}{32+16.2}.100\%=50\%\)%mO = 100% - 50% = 50%+ SO3
%mS = \(\frac{32}{32+16.3}.100\%=40\%\) %mO = 100% - 40% = 60%