Answer to Question #89099 in Chemistry for ajanay

Question #89099

5g of hcl, how much h2 will be produced?

Expert's answer

Zn+2HCl=H₂+ZnCl₂

n=m/M

M(H₂)=2 g/mol

M(HCl)=36.5 g/mol

n (HCl) = 5/36.5=0.14 mol

n (H₂) = 1/2 x 0.14=0.07 mol

m (H₂)=0.07 x 2 = 0.14 g

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