a) 2Al + 3Cl2 \(\underrightarrow{to}\) 2AlCl3
Tỉ lệ: 2 : 3 : 2
b) \(n_{Al}=\dfrac{5,4}{27}=0,2\left(mol\right)\)
theo PT: \(n_{Cl_2}=\dfrac{3}{2}n_{Al}=\dfrac{3}{2}\times0,2=0,3\left(mol\right)\)
\(\Rightarrow V_{Cl_2}=0,3\times22,4=6,72\left(l\right)\)
c) Theo PT: \(n_{AlCl_3}=n_{Al}=0,2\left(mol\right)\)
\(\Rightarrow m_{AlCl_3}=0,2\times133,5=26,7\left(g\right)\)
\(n_{Al}=\dfrac{5,4}{27}=0,2\left(mol\right)\)
a. PTHH: \(2Al+3Cl_2\rightarrow2AlCl_3\)
Theo PT: 2...........3............2
Theo đề: 0,2........0,3..........0,2
b. Theo PT ta có: \(n_{Cl_2}=\dfrac{0,2.3}{2}0,3\left(mol\right)\Rightarrow V_{Cl_2}=n.22,4=0,3.22,4=6,72\left(l\right)\)
c. Khối lượng nhôm clorua thu được là:
\(m_{AlCl_3}=n.M=0,2.133,5=26,7\left(g\right)\)