a) nFe= 0,25(mol)
PTHH: Fe + H2SO4 -> FeSO4 + H2
0,25______0,25______0,25__0,25(mol)
b) V(H2,đktc)=0,25.22,4=5,6(l)
c) mH2SO4= 0,25.98= 24,5(g)
Lời giải "chi tiết"
PTHH: \(Fe+H_2SO_4\rightarrow FeSO_4+H_2\uparrow\)
Ta có: \(n_{Fe}=\dfrac{14}{56}=0,25\left(mol\right)=n_{H_2SO_4}=n_{H_2}\)
\(\Rightarrow\left\{{}\begin{matrix}m_{H_2SO_4}=0,25\cdot98=24,5\left(g\right)\\V_{H_2}=0,25\cdot22,4=5,6\left(l\right)\end{matrix}\right.\)
a,PTHH:Fe+H2SO4→FeSO4+H2↑
b, Ta có: nFe= \(\dfrac{14}{56}\)=0,25(mol)
Theo pt: nH2=nFe=0,25(mol)
⇒VH2=0,25.22,4=5,6(l)
c, Theo pt: nH2SO4=nFe=0,25(mol)
⇒mH2SO4=0,25.98=24,5(g)