How many grams of H2 will be produced when 130.76 g of zinc are consumed ?

Answer 1

Balanced chemical reaction: Zn (s) + 2 HCl (aq) → ZnCl₂ (aq) + H₂ (g)

130.76 g Zn x (1 mol Zn / 65.38 g Zn) x (1 mol H₂ / 1 mol Zn) x (2.02 g H₂ / 1 mol H₂) = 4.04 g H₂ produced