probabil ai vrut sa scrii acid sulfuric; obtinerea lui are loc in 3 etape
120kg xkg
4 FeS2 +11 O2 = 2Fe2O3 +8 SO2
4.120kg 8.64 kg
x=120 .8 .64 : 4.120=128 kg SO2
urmeaza a doua ec.
128 kg y kg
2 SO2 + O2 =2SO3
2. 64kg 2.80kg
y=128.2 . 80 : 2 .64=160 kg SO3
in a treia ec. se formeaza acidul sulfuric
160kg zkg
SO3 + H2O = H2SO4
80kg 98 kg
z=160 .98 : 80=196 kg H2SO4
MFeS2=56+ 2.32=120------> 1kmol=120kg [120kg/kmoli ]
MSO2=32 + 2.16=64----->1kmol=64 kg
MSO3=32 =3.16=80------> 1kmol=80kg
MH2SO4=2+32+4.16=98------> 1kmol=98kg
