Answer to Question #111021 in General Chemistry for Juan

Question

How many grams of Zn would be needed to produce 72.0 grams of H 2 ? \ Zn(s)+\ HCl(g) \ ZnCl 2 (aq)+\ H 2 (g)

Answer 1

Zn + 2 HCl = ZnCl₂ + H₂

Quantity of Zn is equal to quantity of H₂ = 72.0 g / 2 g/mole = 36.0 mole.

Mass of Zn = 36.0 mole * 65.4 g/mole = 2353.4 grams of zinc