\(n_{FeCl_3}=\dfrac{29,25}{162,5}=0,18\left(mol\right)\)
PTHH: 2Fe + 3Cl2 --to--> 2FeCl3
0,18<------------------0,18
=> mFe = 0,18.56 = 10,08(g)
PTHH: \(Fe+3Cl\underrightarrow{t^o}FeCl_3\)
\(n_{FeCl_3}=\dfrac{29,25}{162,5}=0,18\left(mol\right)\)
\(n_{FeCl_3}=n_{Fe}=0,18\left(mol\right)\)
\(\Rightarrow m_{Fe}=0,18.56=10,08\left(g\right)\)
Vậy: m = 10,08