PTHH: \(Zn+2HCl\rightarrow ZnCl_2+H_2\)
a) Ta có: \(n_{H_2}=\frac{10,08}{22,4}=0,45\left(mol\right)\)
\(\Rightarrow n_{Zn}=0,45mol\) \(\Rightarrow m_{Zn}=0,45\cdot65=29,25\left(g\right)\)
b) Theo PTHH: \(n_{Zn}=n_{ZnCl_2}=0,45mol\)
\(\Rightarrow m_{ZnCl_2}=0,45\cdot136=61,2\left(g\right)\)
c) Theo PTHH: \(n_{HCl}=2.n_{Zn}=0,9mol\)
\(\Rightarrow C_{M_{HCl}}=\frac{0,9}{0,2}=4,5\left(M\right)\)