\(n_{H_2}=\dfrac{3.36}{22.4}=0,15\left(mol\right)\)
PTHH : Zn + 2HCl -> ZnCl2 + H2 ( 1)
0,15 0,15
PTHH : 2Al + 6HCl -> 2AlCl3 + 3H2 ( 2 )
0,1 0,15
\(m_{Zn}=0,15.65=9,75\left(g\right)\)
\(m_{Al}=27.0,1=2,7\left(g\right)\)
\(m_{hh}=9,75+2,7=12,45\left(g\right)\)
nH2=3,36:22,4=0,15(mol)
có PTHH:
Zn+2HCl--->ZnCl2+H2
0,15 0,15(mol)
2Al+6HCl--->2AlCl3+3H2
0,1 0,15(mol)
mAl=0,1x27=2,7(g)
mZn=0,15x65=9,75(g)
ma=2,7+9,75=12,45(g)