a,\(\dfrac{5}{8}\cdot y=\dfrac{3}{2}\\ y=\dfrac{3}{2}:\dfrac{5}{8}\\ y=\dfrac{12}{5}\)

\(b,y:\dfrac{1}{6}=\dfrac{3}{5}\\ y=\dfrac{3}{5}\cdot\dfrac{1}{6}\\ y=\dfrac{1}{10}\)

sai rồi !!!

a, PTHH: Zn+2HCl---> ZnCl2 + H2

b, ta có n=m/M=> nZn=0,1 mol

=>VH2=2,24 l

c, ta có nHCl= 0,2 mol

=> mHCl= 7,1 g

d, ta có nZnCl2= 0,1 mol 

=> mZnCl2= 461,5 g