a) PTHH: \(Zn+H_2SO_4\rightarrow ZnSO_4+H_2\uparrow\)
\(Cu+2H_2SO_{4\left(đ\right)}\xrightarrow[]{t^o}CuSO_4+SO_2\uparrow+2H_2O\)
b+c) Ta có: \(\left\{{}\begin{matrix}n_{Zn}=n_{H_2}=\dfrac{6,72}{22,4}=0,3\left(mol\right)\\n_{Cu}=\dfrac{1}{2}n_{H_2SO_4\left(đ\right)}=\dfrac{1}{2}\cdot\dfrac{200\cdot98\%}{98}=1\left(mol\right)\end{matrix}\right.\)
\(\Rightarrow\left\{{}\begin{matrix}m_{Zn}=0,3\cdot65=19,5\left(g\right)\\m_{Cu}=1\cdot64=64\left(g\right)\end{matrix}\right.\) \(\Rightarrow\left\{{}\begin{matrix}\%m_{Zn}=\dfrac{19,5}{19,5+64}\cdot100\%\approx23,35\%\\\%m_{Cu}=76,65\%\end{matrix}\right.\)
d) Theo PTHH: \(n_{SO_2}=1\left(mol\right)\) \(\Rightarrow V_{SO_2}=1\cdot22,4=22,4\left(l\right)\)
