a. \(PTHH:2Al+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2\uparrow\)
b. \(n_{Al}=\dfrac{m_{Al}}{M_{Al}}=\dfrac{1,62}{27}=0,06\left(mol\right)\)
\(PTHH:2Al+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2\uparrow\)
Mol : 2 : 3 : 1 : 3
Mol : 0,06 → 0,09 → 0,03 → 0,09
\(\Rightarrow n_{H_2}=0,09\left(mol\right)\)
\(\Rightarrow V_{H_2}=n_{H_2}.22,4=0,09.22,4=2,016\left(l\right)\)
c. Từ b. suy ra \(\Rightarrow n_{H_2SO_4}=0,09\left(mol\right)\)
\(C_M=\dfrac{n_{H_2SO_4}}{V_{H_2SO_4}}\Rightarrow V_{H_2SO_4}=\dfrac{n_{H_2SO_4}}{C_M}=\dfrac{0,09}{1}=0,09\left(l\right)\)
\(n_{Al}=\dfrac{1,62}{27}=0,06\left(mol\right)\\
pthh:2Al+6HCl\rightarrow2AlCl_3+3H_2\uparrow\)
0,06 0,18 0,09
\(V_{H_2}=0,09.22,4=2,016\left(l\right)\\
V_{HCl}=\dfrac{0,18}{1}=0,18\left(l\right)\)