\(n_{H_2}=\frac{2,24}{22,4}=0,1\left(mol\right)\)
PTHH: \(Fe+H_2SO_4\rightarrow FeSO_4+H_2\)
\(0,1--------->0,1\)
Theo phương trình: \(n_{Fe}=n_{H_2}=0,1\left(mol\right)\Rightarrow m_{Fe}=0,1.56=5,6\left(g\right)\)
VH2=n/22.4=2.24/22.4=0.1mol
ptpu
Fe+H2SO4→FeSO4+H2
0.1 ← 0.1
m=n*M=0.1*56=5.6g