Jawapan

2016-04-04T15:12:17+08:00
Bilangan mol Cuo =8/80=0.1 mol.
Cuo = Cu(No³)²
1:1
01:0.1
jisim kuprum II nitrat ... 0.1 × 188=18.8 g
thats all.by using formula empiric,u can find the mass and products by it