\(n_{Fe_2O_3}=\dfrac{0,16}{160}=0,001\left(mol\right)\)
PTHH: \(Fe_2O_3+6HCl\rightarrow2FeCl_3+3H_2O\)
0,001---->0,006---->0,002
\(\rightarrow\left\{{}\begin{matrix}V=\dfrac{0,006}{2}=0,003\left(l\right)\\a=0,002.162,5=0,325\left(g\right)\end{matrix}\right.\)