var nestins CaO...miu(M)=(40gCa+16gO)/mol=56g/mol
carnonat de Ca: CaCO3.....M= (40gCa + 12gC+3x16gO)/mol= 100g/mol
CaO provine prin descompunerea termica a carbonatului pur
100g............56g
CaCO3----> Cao + CO2
x............... 320g
x=571,43g carbonat pur
masa de calcar-carbonat impur- se deduce din formula puritatii
p/100= m,pur/m,impur
90/100= 571,43/ m,calcar----------------> calculeaz !!!!
