Calculate the volume of oxygen obtained from 200 liters of air if it is known that the volume fraction

univerkov | July 7, 2021 | education

Calculate the volume of oxygen obtained from 200 liters of air if it is known that the volume fraction of oxygen in the air is 21%.

Let’s find the volume of oxygen contained in 200 liters of air by the formula:

mass fraction of gas in the mixture = gas volume: mixture volume * 100%.

Let’s substitute the data from the problem statement into this formula:

21% = x: 200 l * 100%.

x = 21% * 200 l: 100% = 42 (l) oxygen.

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