Explicație:
Xg 100 g. X
CaCo3+2HCl= CaCl2 +Co2+H2O
100 g/mol 2*36,5g/mol. 44.01 g/mol
M HCl=1*1+35,5=36,5(g/mol) (ms)
M CaCo3=100(g/mol)
C=md/ms*100
Md=Ms*C/100
Md=36,5*38/100=13,87HCl
X/100=100/73
X=100*100/73
X=136,98 grame de Caco3
MCO2=44.01 g/mol
100/73=X/44.01
X=100*44.01/73
X=60,28 grame CO2