Pt: Fe+2HCl---> FeCl2 +H2
nFe= m/M= 11.2/ 56= 0.2 ( mol)
nFe=nH2=0.2 mol
=> VH2= n x 22.4 = 0.2 x 22.4= 4.48 (l)
nHCl= 0.2 x 2 = 0.4 mol
đổi : 100ml=0.1 lit
MHCl= n/ V = 0.4 x 0.1= 4 ( M)
nFe = 11.2/56 = 0.2 mol
Fe + 2HCl --> FeCl2 + H2
0.2___0.4___________0.2
VH2 = 0.2*22.4 = 4.48 (l)
CM HCl = a = 0.4/0.1 = 4M
nFe = 11,2/56 = 0,2 mol
Fe + 2HCl ---> FeCl2 + H2
0,2 0,4 0,2
CM HCl = 0,4/01 = 4M
VH2 = 0,2.22,4 = 4,48 l
PTHH: Fe+2HCl\(\rightarrow\)FeCl2+H2
=> nFe= 22/56=0,2 mol
V H2= 0,2. 22,4= 4,48l
CM =0,4/1=4M
=> a= 4M