Răspuns :
M,carbonat bazic= 222g/mol=222kg/kmol
niu= m/M= 111kg/222kg/kmol= 0,5kmol
1mol...............................2mol
CuCO3*Cu(OH)2---> 2CuO +H2O +CO2 M,HCl= 36,5g/mol
0,5kmol..........................x= 1kmol CuO
a. m=niuxM=1kmolx80kg/kmol= 80kg CuO
b. 1kmol.......2kmol
CuO + 2HCl---> CuCl2 + H2O
80kg........2x36,5kg
80kg............x=m=md=2x36,5kg......
c= mdx100/ms, unde md= 2x36,5kg
ms= 2x36,5x100/36,5 kg= 200kg
c. 1kmol........2kmol.............2kmol
CuCl2 + 2AgNO3----> 2AgCl ↓+Cu(NO3)2
1kmol........x= 2kmol.........y=2kmol
niu,AgCl= 2kmol
d. md= niuxM= 2X170kg= 340kg
ms= 340x100/20kg=......................calculeaza !!!!