Fe+2HCl->Fecl2+H2
0,15----0,3-----------0,15
n H2=0,15 mol
=>m Fe=0,15.56=8,4g
CMHCl =\(\dfrac{0,3}{0,05}\)=6M
a) `Fe + 2HCl -> FeCl_2 + H_2`
b) \(n_{H_2}=\dfrac{3,36}{22,4}=0,15\left(mol\right)\)
\(n_{Fe}=n_{H_2}=0,15\left(mol\right)\)
=> mFe = 0,15.56 = 8,4 (g)
c) nHCl = 2nFe = 0,3 (mol)
=> \(C_{M.HCl}=\dfrac{0,3}{0,05}=6M\)
a)Fe + 2HCl -> FeCl2 + H2
b) n Fe = n H2 = 0,15 mol
mFe = 0,15 x 56 = 8,4
c) cM = 0,3/0,05 = 6 M