a. PTHH: \(2Al+6HCl\rightarrow2AlCl_3+3H_2\)
\(n_{Al}\dfrac{5,4}{27}=0,2\left(mol\right)\)
b. Theo PT ta có: \(n_{H_2}=\dfrac{0,2.3}{2}=0,3\left(mol\right)\)
Thể tích khí H thoát ra (ở đktc) là:
\(V_{H_2}=0,3.22,4=6,72\left(l\right)\)
c. Theo PT ta có: \(n_{HCl}=\dfrac{0,2.6}{2}=0,6\left(mol\right)\)
Khối lượng HCl tham gia phản ứng là:
\(m_{HCl}=0,6.36,5=21,9\left(g\right)\)
a. PTHH: \(2Al+6HCl\rightarrow2AlCl_3+3H_2\\ 0,2mol:0,6mol\rightarrow0,2mol:0,3mol\)
b. \(n_{Al}=\dfrac{5,4}{27}=0,2\left(mol\right)\)
\(V_{H_2}=3.22,4=67,2\left(l\right)\)
c. \(m_{HCl}=0,6.36,5=21,9\left(g\right)\)
\(n_{Al}=\dfrac{m_{Al}}{M_{Al}}=\dfrac{5,4}{27}=0,2\left(mol\right)\)
a) \(2Al+6HCl\rightarrow2AlCl_3+3H_2\)
b) Theo PTHH: \(\Rightarrow n_{H_2}=\dfrac{0,2.3}{2}=0,3\left(mol\right)\)
\(\Rightarrow V_{H_2\left(đktc\right)}=n_{H_2}.22,4=0,3.22,4=6,72\left(l\right)\)
c) Theo PTHH: \(\Rightarrow n_{HCl}=\dfrac{0,2.6}{2}=0,6\left(mol\right)\)
\(\Rightarrow m_{HCl}=n_{HCl}.M_{HCl}=0,6.36,5=21,9\left(g\right)\)