Calculate the mass of zinc required to obtain zinc chloride in the amount of 0.4 mol
| May 29, 2021 | education
Calculate the mass of zinc required to obtain zinc chloride in the amount of 0.4 mol when interacting with hydrochloric acid.
The equation for the reaction of zinc with hydrochloric acid:
Zn + 2 H Cl = Zn Cl2 + H2.
From the reaction equation it follows that from 1 mole of zinc, 1 mole of zinc chloride is obtained. Thus, to obtain zinc chloride in the amount of 0.4 mol, 0.4 mol of zinc is also required.
Molar mass of zinc: M (Zn) = 65 g / mol, which corresponds to the mass of zinc: 0.4 × 65 = 26 g.
Answer: the mass of zinc is 26 g.
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