Calculate the volume of air required to produce 21 liters of oxygen.
| December 21, 2020 | education
given: V (oxygen) = 21 l
since the air contains 21% oxygen, therefore we will make the proportion
21 L – 21%
xl – 100%
V (air) = 100% * 21/21% = 100 l
answer: 100 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.
