1mol 1mol
CaO + H20 =Ca(OH)2
1mol Cao are masa: 40g/mol Ca+16g/molO---> 56g/mol
1 mol Ca(OH)2 are masa ; 40g/molCa +32g/molO+2gH----. >74g/mol
Revenind la informatiile scrise de-asupra ecuatiei:
din 56g CaO rezulta 74g Ca(OH)2
1,18g m= 1,18x74/56 calculeaza!