M,FeS2= 12Okg/kmol
M,SO2= 64kg/kmol
din ecuatia scrisa,
8kmolx64kg/kmol SO2..............4kmolx120kg/kmolFeS2
128kg.........................................................x
calculeaza x ,kg !!!
n= m/M----> n= x(calculat)kg/ 120kg/kmol=...................kmol,...calculeaza !!!!