\(n_{H2}=\dfrac{11,2}{22,4}=0,5\left(mol\right)\)
a) Pt : \(Fe+2HCl\rightarrow FeCl_2+H_2|\)
1 2 1 1
0,5 1 0,5
\(Fe_2O_3+6HCl\rightarrow2FeCl_3+3H_2O|\)
1 6 2 3
0,1 0,6
b) \(n_{Fe}=\dfrac{0,5.1}{1}=0,5\left(mol\right)\)
⇒ \(m_{Fe}=0,5.56=28\left(g\right)\)
\(m_{Fe2O3}=44-28=16\left(g\right)\)
0/0Fe = \(\dfrac{28.100}{44}=63,64\)0/0
0/0Fe2O3 = \(\dfrac{16.100}{44}=36,36\)0/0
c) Có : \(m_{Fe2O3}=16\left(g\right)\)
\(n_{Fe2O3}=\dfrac{16}{160}=0,1\left(mol\right)\)
\(n_{HCl\left(tổng\right)}=1+0,6=1,6\left(mol\right)\)
⇒ \(m_{HCl}=1,6.36,5=58,4\left(g\right)\)
\(m_{ddHCl}=\dfrac{58,4.100}{5}=1168\left(g\right)\)
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