Zn + 2HCl = ZnCl2 + H2
MZn=65g/mol
MH2=2AH=2*1=2g/mol
MHCl=AH+ACl=1+35,5=36,5g/mol
65g Zn..................................2g H2
x=16,25g............................0,5g H2
puritatea = mpur/m impur/100=16,25/20*100=81,25%
2*36,5 HCl...............................2g H2
x=.............................................0,5g
x=0,5*73/2=18,25g HCl (md)
Cp=md/ms*100=>ms=md*100/Cp=1825/9= Calculeaza !