134,4 g xg yg
ZnCl2 + Ca(OH)2 =Zn(OH)2 + CaCl2
136g 99g 111g
MZnCl2=65+2.35,5=136----->1mol=136g
MZn(OH)2 =65+2.16+2=99------->1mol=99g
MCaCl2=40+2.35,5=111---->1mol=111g
se calculeaza puritatea ZnCl2
p=96 la suta [ 100-4=96 ]
p=mp.100 : mt
mp=p.mt: 100
mp=96.140 :100 =134,4g ZnCl2 pur
se calculeaza x si y din ec.
x=134,4 . 99 : 136=97,83 g Zn(OH)2
y=134,4 .111 : 136=109,69 g CaCl2