Răspuns:2HCl+Ca[OH]2=CaCl2+2H2O ms Ca[OH]2=150g c%=25 md=150.25/100 =37,5g MCa[OH]2=40|2.16+1.2=74g/mol 1mol de Ca[OH[2 ......74g x................................37,5 x=0,5moli se calculeaza numarul de moli de HCl din reactie la 2moli de HCl..........1mol Ca{OH]2 ymoli Hcl........................................0,5moli y=1mol HCl se stie Cm=1,5molar Cm=Nr moli/V V=nr moli/Cm V=1molHCl/1,5=0,666l
Explicație: