\(Zn+2HCl\rightarrow ZnCl_2+H_2\)
0,2____0,4 ________0,2______ 0,2
\(ZnO+2HCl\rightarrow ZnCl_2+H_2O\)
0,04___0,08______ 0,04________
Ta có :
\(n_{H2}=\frac{0,4}{2}=0,2\left(mol\right)\)
Đổi 960ml = 0,96 (l)
\(n_{HCl}=0,96.0,5=0,48\left(mol\right)\)
\(\%m_{Zn}=\frac{0,2.65}{0,2.65+0,04.\left(65+16\right)}.100\%=80,05\%\)
\(\%m_{ZnO}=100\%-80,05\%=19,95\%\)
\(2AgNO_3+ZnCl_2\rightarrow Zn\left(NO_3\right)_2+2AgCl_2\)
_________0,24___________________0,48
\(\rightarrow m_{AgCl2}=0,48.\left(108+71\right)=68,88\left(g\right)\)
