PTPU
Fe+ H2SO4\(\rightarrow\) FeSO4+ H2
0,15....0,15 \(\leftarrow\) 0,15 mol
ta có: nH2= \(\dfrac{3,36}{22,4}\)= 0,15( mol)
\(\Rightarrow\) mFe= 0,15. 56= 8,4( g)
CM H2SO4= \(\dfrac{0,15}{0,05}\)= 3M
Đổi: 50 ml = 0,05 l
a) PTHH: Fe + H2SO4 → FeSO4 + H2
\(n_{H_2}=\dfrac{3,36}{22,4}=0,15\left(mol\right)\)
b) Theo PT: \(n_{Fe}pư=n_{H_2}=0,15\left(mol\right)\)
\(\Rightarrow m_{Fe}pư=0,15\times56=8,4\left(g\right)\)
c) Theo PT: \(n_{H_2SO_4}pư=n_{H_2}=0,15\left(mol\right)\)
\(\Rightarrow C_{M_{H_2SO_4}}=\dfrac{0,15}{0,05}=3\left(M\right)\)