a1) CaCO=CaO+CO2
2) CaO+H2O=Ca(OH)2
3 )CO2+NH3+H2O=NH4HCO3
4) NH4HCO3+NaCl=NaHCO3+NH4Cl
5)2NaHCO3=Na2CO3+CO2H2O
6)Ca(OH)2+2NH4Cl=CaCl2+2NH3+2H2O
b) mCaCO3=500 g
%CaCO3 pur =80%
n(randament )=75%
mCaO=?
MCaCO3=40+12+3*16=100
MCaO=40+16=56
100 g CaCO3.....80 g CaCO3 pur
500g...................x=400 g
100gCaCO3.......56gCaO
400g.................y=224 g
n=Cp/Ct*100 Cp=n*Ct/100=75*224/100=168 g
c) mCaCO3=1/2*168=84 g
mCa(OH)2=?
MCa(OH)2=40+32=2=74
56 gCaO.......74 gCa(OH)2
84g....................z=111 g