Determine the mass of hydrochloric acid reacted with 650 g of zinc. How much hydrogen is released in this case?
February 19, 2021 | education
| The reaction of dissolving zinc in hydrochloric acid is described by the following chemical reaction equation:
Zn + 2HCl = ZnCl2 + H2;
When 1 mol of zinc is dissolved, 1 mol of hydrogen gas is released.
Let’s calculate the chemical amount of a substance contained in 650 grams of zinc.
M Zn = 65 grams / mol;
N Zn = 650/65 = 10 mol;
The same amount of hydrogen will be synthesized.
1 liter of ideal gas assumes a volume of 22.4 liters (under normal conditions).
The gas volume will be:
V H2 = 10 x 22.4 = 224 liters;
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