\(n_{Zn}=\dfrac{39}{65}=0,6\left(mol\right)\\
n_{HCl}=\dfrac{36,5}{36,5}=1\left(mol\right)\\
pthh:Zn+2HCl\rightarrow ZnCl_2+H_2\)
\(LTL:\dfrac{0,6}{1}>\dfrac{1}{2}\)
=> Zn DƯ
\(n_{Zn}=\dfrac{1}{2}n_{HCl}=0,5\left(mol\right)\\
m_{Zn\left(d\right)}=\left(0,6-0,5\right).65=6,5\left(g\right)\\
n_{H_2}=\dfrac{1}{2}n_{HCl}=0,5\left(mol\right)\\
V_{H_2}=0,5.22,4=11,2\left(l\right)\\
n_{CuO}=\dfrac{36}{80}=0,45\left(mol\right)\\
pthh:CuO+H_2\underrightarrow{t^o}Cu+H_2O\)
\(LTL:\dfrac{0,45}{1}< \dfrac{0,5}{1}\)
=> khí sinh ra có khử hết CuO