n(Zn)
"n=\\frac{m}{M}=\\frac{3.4}{65.38}=0.05"
n(HCL)
"n=\\frac{m}{M}=\\frac{9}{36.4609}=0.24"
decide further on zinc, in shortage
n(H2)=n(Zn)=0.05
m(H2)
"m=n\\times M=0.05\\times2.016=0.1" g
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