Question

Chlorine is prepared in the laboratory by treating manganese dioxide (MnO2) with
aqueous hydrochloric acid according to the reaction
4 HCl (aq) + MnO2(s) → 2H2O (l) + MnCl2(aq) + Cl2 (g)
How many grams of HCl react with 5.0 g of manganese dioxide?

Answer 1

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@Durgapalsingh here is your answer :)

Hydrogen chloride is a compound whose chemical formula is HCl. At room temperature, it is a colorless gas that, when exposed to atmospheric humidity, produces white fumes of hydrochloric acid.

Hydrogen chloride gas and hydrochloric acid are important in technology and industry. Hydrochloric acid, an aqueous solution of hydrogen chloride, is also commonly given the formula HCl.

Equations:-

1 mol of MnO2 = 55+32 g = 87 g

87 g of MnO2 react with 4 moles of HCl i.e. 4×36.5 g = 146 g of HCl.

∴ 5.0 g of MnO2 will react with HCl = 146/87×5.0 g = 8.40 g.

Answer 2

Answer:

8.390 grams is hydrochloric acid