Răspuns:
M,FeS2=120g/mol M,SO2=64g/mol
FeS2 + 11/2O2---> Fe2O3 + 4SO2
2x120 t..............................................4x64t
15t.........................................................x=mteoretica=16 t SO2
m,practica= 16x80/100t=12,8t
niu=m/M= 12800Kg/64Kg/kmol=200kmol
C=mdx100/ms---> md= 15x17/100g=2,55gH2O2
M,H2O2=34g/mol M,H2O=18g/mol
34g 18g
H2O2----> H2O+ 1/2O2
2,55g...........x=m=1,35gH2O..
Explicație: