\(Fe+2HCl-->FeCl_2+H_2\)
0,2___0,4__________0,2____0,2
\(n_{Fe}=\dfrac{11,2}{56}=0,2\left(mol\right)\)
a) => \(V_{H_2}=0,2.22,4=4,48\left(l\right)\)
b)=> \(m_{HCl}=0,4.36,5=14,6\left(g\right)\)
c) \(m_{FeCl_2}=0,2.127=25,4\left(g\right)\)
Fe + 2HCl → FeCl2 + H2
\(n_{Fe}=\dfrac{11,2}{56}=0,2\left(mol\right)\)
a) Theo PT: \(n_{H_2}=n_{Fe}=0,2\left(mol\right)\)
\(\Rightarrow V_{H_2}=0,2\times22,4=4,48\left(l\right)\)
b) Theo PT: \(n_{HCl}=2n_{Fe}=2\times0,2=0,4\left(mol\right)\)
\(\Rightarrow m_{HCl}=0,4\times36,5=14,6\left(g\right)\)
c) Theo PT: \(n_{FeCl_2}=n_{Fe}=0,2\left(mol\right)\)
\(\Rightarrow m_{FeCl_2}=0,2\times127=25,4\left(g\right)\)