\(\text{nZn=0,1 mol }\)
a, Zn+2HCl\(\rightarrow\)ZnCl2+H2
\(\rightarrow\)nHCl= 0,2 mol
b, \(\rightarrow\) a= CM HCl= \(\frac{0,2}{0,2}\)= 1M
c, nH2= 0,1 mol \(\rightarrow\) \(\text{V H2= 0,1.22,4=2,24l }\)
d, nHCl= \(\frac{\text{50.14,6%}}{36,5}\)= 0,2 mol
\(\rightarrow\) Pu xảy ra vừa đủ
\(\rightarrow\) nZnCl2= 0,1 mol \(\rightarrow\) \(\text{mZnCl2=0,1.136=13,6g}\)