Răspuns:
8-ESTE SIMPLA ,asa ca rezolva !
7
-calculez masa de CaCO3 PUR cu p=80%
p=m,px100/m,i---> m,p=200x80/100kg=160kg
M,CaCO3=100Kg/kmol
M,CaO= 56kg/kmol
100Kg.............56kg
CaCO3------> CaO + CO2
160kg............x=m=89,6kg
56Kg......................111kg deoarece M,CaCL2=111kg/kmol
CaO + 2HCl------> CaCL2 + H2O
89,6kg.....................x=m=177,6kgCaCl2
niu.CaCl2= m/M= 177,6/111kmol=1.6kmol
Explicație: