a) 2Al+6HCl---->2AlCl3+3H2(1)
x(27x)-----3x----------x-------1,5x
Fe+2HCl--->FeCl2+H2(2)
y-(56x)----2y-------y---------y
n\(_{H2}=\frac{0,896}{22,4}=0,04\left(mol\right)\)
Suy ả
\(\left\{{}\begin{matrix}27x+56y=1,1\\1,5x+y=0,04\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}x=0,02\\y-0,01\end{matrix}\right.\)
m\(_{Al}=0,02.27=0,54\left(g\right)\)
m\(_{Fe}=1,1-0,54=0,56\left(g\right)\)
b) Theo pthh
n\(_{HCl}=2n_{H2}=0,08\left(mol\right)\)
V\(_{HCl}=\frac{0,08}{0,5}=0,16\left(l\right)=160ml\)
(Chỗ d=1,2g/ml nha bạn)
m dd=160.1,2=192(g)
c) Tự làm nhé