# Calculate the mass of the zinc chloride formed, if 32 liters were released during the interaction of zinc with salic acid. hydrogen.

October 11, 2021 | education

| Zinc dissolves in hydrochloric acid, the reaction proceeds according to the following chemical equation:

Zn + 2HCl = ZnCl2 + H2;

Let’s calculate the molar amount of synthesized hydrogen.

For this purpose, we divide the volume that it occupies by the volume of 1 mole of gas (filling the space with 22.4 liters).

N H2 = 32 / 22.4 = 1.43 mol;

The same amount of zinc chloride will be synthesized.

Let’s calculate its mass.

To do this, multiply the amount of the substance by its molar weight.

M ZnCl2 = 65 + 35.5 x 2 = 136 grams / mol;

m ZnCl2 = 1.43 x 136 = 194.48 grams;

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