PTHH: \(2Al+6HCl\rightarrow2AlCl_3+3H_2\\ 0,2mol:0,6mol\leftarrow0,2mol:0,3mol\)
\(n_{H_2}=\frac{6,72}{22,4}=0,3\left(mol\right)\)
a. \(m_{Alpu}=0,2.27=5,4\left(g\right)\)
\(m_{Aldung}=5,4+\left(5,4.10\%\right)=5,94\left(g\right)\)
b. \(N_{HCl}=n.6.10^{23}=0,6.6.10^{23}=3,6.10^{23}\left(Phantu\right)\)
c. PTHH: \(CuO+H_2\rightarrow Cu+H_2O\\ 0,3mol:0,3mol\rightarrow0,3mol:0,3mol\)
\(m_{CuO}=80.0,3=24\left(g\right)\)