-ecuatia reactiei
1mol 1mol
CaCo3 ---> CaO+CO2
100g................56g
62g.................m=34,72g
-ecuatia reactiei
1mol 2mol
CaO+2HCl---> CaCl2 +H2O
56g.......73g
34,72.....m=45,26g
c/100= md/ms--> 10/100=45,26/ms------calculeaza ms !
si mai calculeaza masele molare !!!!