Răspuns:
Explicație:
1.
78kg xkg
Zn + 2HCl = ZnCl2 +H2
65kg 2.36,5kg
x=78.73 : 65=87,6 kg HCl
ykg 1kg
Zn + H2SO4= ZnSO4 +H2
65kg 98kg
y=1 .65 : 98=0,66 kg Zn
2.
-se afla masa pura de CaCO3
mp= p. mi :100
mp=80.200 : 100=160kg CaCO3 pur
160kg zkg
CaCO3 = CaO + CO2
100kg 56kg
z=160.56 : 100=89,6 kg CaO
n= 89,6 kg : 56 kg/kmoli=1,6 kmoli CaO
=1600 moli CaO
MCaCO3=40+12+3.16=100--->100kg/kmoli
MCaO=40+16=56---->56kg/kmoli
MHCl=1+35,5=36,5------>36,5kg/kmoli
MH2SO4=2+32+4.16=98---->98kg/kmoli