a) nAl=2,7/27=0,1(mol)
PTHH: 2Al + 6 HCl -> 2 AlCl3 + 3H2
0,1_________0,3___0,1_____0,15(mol)
b) mHCl=0,3.36,5=10,95(g)
c) mAlCl3=0,1.133,5=13,35(g)
d) V(H2,đktc)=0,15.22,4=3,36(l)
a. PTHH: 2Al + 6HCl \(\rightarrow\) 2AlCl\(_3\) + 3H\(_2\)
b. \(n_{Al}=\dfrac{m_{Al}}{M_{Al}}=\dfrac{2,7}{27}=0,1\) (mol)
\(n_{HCl}=\dfrac{0,1.6}{2}=0,3\) (mol)
\(m_{HCl}=n_{HCl}.M_{HCl}=0,3.36,5=10,95\) (g)
c. \(n_{AlCl_3}=\dfrac{0,1.2}{2}=0,1\) (mol)
\(m_{AlCl_3}=n_{AlCl_3}.M_{AlCl_3}=0,1.133,5=13,35\) (g)
d. \(n_{H_2}=\dfrac{0,1.2}{3}=0,15\) (mol)
\(V_{H_2}=n_{H_2}.22,4=0,15.22,4=3,36\) (l)