\(n_{Zn}=\dfrac{m_{Zn}}{M_{Zn}}=\dfrac{13}{65}=0,2\left(mol\right)\\ a,PTHH:Zn+2HCl\rightarrow ZnCl_2+H_2\uparrow\\ b,n_{H_2}=n_{Zn}=0,2\left(mol\right)\\ \Rightarrow V_{H_2\left(đktc\right)}=0,2.22,4=4,48\left(l\right)\)
\(a,Zn+2HCl\rightarrow ZnCl_2+H_2\\ b,n_{Zn}=\dfrac{13}{65}=0,2\left(mol\right)\\ Theo.PTHH:\)
0,2____0,4______0,2____0,2
\(\rightarrow V_{H_2}=n.22,4=0,2.22,4=4,48\left(l\right)\)