How many liters of hydrogen measured under normal conditions can be obtained by the action
| June 29, 2021 | education
How many liters of hydrogen measured under normal conditions can be obtained by the action of 13 g of zinc on hydrochloric acid?
The reaction of zinc with sulfuric acid is described by the following formula:
Zn + 2HCl = ZnCl2 + H2
That is, the molar amounts of zinc used and hydrogen produced are equal.
Let’s calculate the molar amount of zinc.
The molar mass of zinc is 65 grams / mol.
13 grams of zinc is 13 grams / 65 grams / mol = 0.2 mol of the substance.
The same number of moles of hydrogen will be obtained
1 mole of ideal gas under normal conditions takes a volume equal to 22.4 liters
0.2 mol of hydrogen will take up a volume of 22.4 liters / mol * 0.2 mol = 4.48 liters.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
