PTHH: \(2Al+6HCl\rightarrow2AlCl_3+3H_2\uparrow\)
Ta có: \(n_{HCl}=0,18\cdot1=0,18\left(mol\right)\)
\(\Rightarrow n_{H_2\left(LT\right)}=0,09\left(mol\right)\)
\(\Rightarrow H\%=\dfrac{\dfrac{1,512}{22,4}}{0,09}\cdot100\%=75\%\)
PT: \(2Al+6HCl\rightarrow2AlCl_3+3H_2\)
Ta có: \(n_{HCl}=0,18.1=0,18\left(mol\right)\)
Theo PT: \(n_{H_2\left(LT\right)}=\dfrac{1}{2}n_{HCl}=0,09\left(mol\right)\)
\(\Rightarrow V_{H_2\left(LT\right)}=0,09.22,4=2,016\left(l\right)\)
Mà: VH2 (TT) = 1,512 (l)
\(\Rightarrow H\%=\dfrac{1,512}{2,016}.100\%=75\%\)
Bạn tham khảo nhé!