pthh: \(Fe_2O_3\left(0,03\right)+6HCl\left(0,18\right)\rightarrow2FeCl_3\left(0,06\right)+3H_2O\)
\(m_{FeCl_3}=0,06.162,5=9,75g\)
\(m_{HCl}=0,18.36,5=6,57g\)
\(\Rightarrow C\%ddHCl=\dfrac{6,57.100}{200}=3,285\%\)
a) Fe2O3 + 6 HCl ➞ 2 FeCl3 + 3 H2
.....0.03.........0.18............0.06.......0.09....(mol)
b)
nFe2O3=4.8/160=0.03(mol)
mFeCl3=0.06*162.5=9.75(g)
c)C% HCl=(0.18*36.5)/200*100%=3.285%