How much hydrogen will be released if 26 grams of zinc reacts with hydrochloric acid?
July 2, 2021 | education
| The interaction of zinc with hydrogen chloride occurs in accordance with the following chemical reaction equation:
Zn + 2HCl = ZnCl2 + H2;
Regardless of the type of acid, dissolving 1 mole of metal releases 1 mole of gaseous hydrogen.
Let’s calculate the amount of substance contained in a sample of 26 grams of metal.
To do this, we find the ratio of its weight to molar mass.
N Zn = 26/65 = 0.4 mol;
The same amount of hydrogen will be released during this interaction.
Let’s calculate its volume.
One mole of gas under normal conditions fills a volume of 22.4 liters.
The volume of hydrogen will be:
V H2 = 0.4 x 22.4 = 8.96 liters;
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