a) PTHH: \(2Al+6HCl\rightarrow2AlCl_3+H_2\uparrow\)
b)\(m_{HCl}=\)82,2g
C%=93,8%
c)\(V_{H_2}=\)2,24
d)\(m_{AlCl_3}=\)13,35
nAl=m/M=5,4/27=0,2(mol)
PT:
2Al + 6HCl -> 2AlCl3 + 3H2
2...........6.............2..............3 (mol)
0,2-> 0,6 -> 0,2 0,3 (mol)
b) mHCl=n.M=0,6.36,5=21,9(g)
=> C% d d HCl=\(\dfrac{m_{HCl}.100}{m_{ddHCl}}=\dfrac{21,9.100}{87,6}=25\left(\%\right)\)
c) VH2=n.22,4=0,3.22,4=6,72(lít)
d) Vì hiệu suất phản ứng là 80%
nên nAlCl3=(0,2.80)/100=0,16(mol)
=> mAlCl3=n.M=0,16.133,5=21,36(g)