a. PTHH: \(2Al+6HCl\rightarrow2AlCl_3+3H_2\uparrow\)
\(n_{H_2}=\frac{6,72}{22,4}=0,3mol\)
Theo phương trình \(n_{Al}=n_{AlCl_3}=\frac{2}{3}n_{H_2}=0,2mol\)
\(\rightarrow m_{Al}=0,2.27=5,4g\)
\(\rightarrow m=5,4\)
b. \(m_{\text{muối}}=m_{AlCl_3}=0,2.133,5=26,7g\)
a)PTHH\(2AL+6HCL\rightarrow2ALCL_3+3H_2\uparrow\)
\(n_{H_2}=\frac{6,72}{22,4}=0,3mol\)
Theo phương trình:\(n_{AL}=n_{alcl_3}=\frac{2}{3}n_{H_2}=0,2mol\)
\(\rightarrow m_{AL}=0,2\cdot27=5,4g\)
\(\rightarrow m=5,4\)
b)\(m_{muối}=m_{alcl_3}=0,2\cdot133,5=26,7g\)