nZn= 16.25/65=0.25 mol
Zn + 2HCl --> ZnCl2 + H2
0.25__0.5_____0.25____0.25
VddHCl= 0.5/0.5=1l
VH2= 0.25*22.4=5.6l
+PTHH:
Zn + 2HCl => ZnCl2 + H2
nZn = m/M = 16.25/65 = 0.25 (mol)
Suy ra: nHCl = 0.25 x 2 = 0.5 (mol)
VddHCl = n/CM = 0.5/0.5 = 1 l
Ta có: nH2 = 0.25 (mol)
===> VH2 = 22.4 x 0.25 = 5.6 (l)