Ca(OH)2+2HCl=CaCl2+2H2O
M(CaCl2)=111 g/mol
M(HCl) =36,5 g/mol
M(Ca(OH)2)= 74 g/mol
n(CaCl2)=222g/111 g/mol= 2 mol
Conform reactiei alcatuim proportia si aflam n(HCl):
n(HCl)= 2mol*2mol/1 mol=4 mol
→ n(Ca(OH)2)=4 mol.
Rezulta
m(HCl)=n(HCl)*M(HCl)=....
m(Ca(OH)2)= n(Ca(OH)2)*M(Ca(OH)2)=....