nZn = 0.02 mol
Zn + 2HCl --> ZnCl2 + H2
0.02__0.04____0.02____0.02
mZnCl2 = 0.02*136=2.72 g
VH2 = 0.02*22.4 = 0.448 (l)
nHCl = 0.04 mol
\(n_{Zn}=\frac{1,3}{65}=0,02\left(mol\right)\)
\(Zn+2HCl\rightarrow ZnCl_2+H_2\)
0,02 0,04 0,02 0,02
\(m_{ZnCl_2}=0,02.136=2,72\left(g\right)\)
→\(V_{H_2}=0,02.22,4=0,448\left(l\right)\)
➞\(n_{HCl}=0,04\left(mol\right)\)
Zn + 2 HCl -> ZnCl2 + H2
0,02....0,04..........0,02......0,02 (mol)
nZn = 0,02 (mol)
mZnCl2 = 136.0,02=2,72 (g)
VH2 = 0,448 (mol)
nHCl pư = 0,04 (mol)
nZn = \(\frac{1,3}{65}\) = 0,02 mol
Zn + 2HCl ---> ZnCl2 + H2
0,02 0,04 0,02 0,02
mZnCl2 = 0,02.136 = 2,72 g
VH2 = 0,02. 22,4 = 0,448 l
nHCl = 0,04 mol (theo pthh)