It is known that the volume fraction of nitrogen in air is 78%. Calculate the volume of nitrogen contained in 250 liters of air.

Let’s determine the volume of nitrogen in the air.

250 liters of air is 100%.

Chl of nitrogen is 78%.

Let’s define the unknown value of x.

X = 78 * 250/100 = 195 liters.

Therefore, in a given volume of air, there are 195 liters of nitrogen.

Answer: 195 l.



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