Zn+2HCl→ZnCl2+H2
n(Zn)=n(H2)=0,448/22,4=0,02 моль
m(Zn)=0,02*65=1,3 г
w(Zn)=1,3/2=0,65=65%
w(Si)=1-0,65=0,35=35%
Zn+2HCl→ZnCl2+H2
n(Zn)=n(H2)=0,448/22,4=0,02 моль
m(Zn)=0,02*65=1,3 г
w(Zn)=1,3/2=0,65=65%
w(Si)=1-0,65=0,35=35%