Calculate the volume of oxygen obtained from 700 liters of air (take the volume fraction of oxygen in the air as 21%).

univerkov | January 19, 2021 | education

Let’s find the volume of oxygen contained in 700 liters of air using 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: 700 l * 100%.

x = 21% * 700 l: 100% = 147 (l) oxygen.

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