How much oxygen can be obtained from 400 liters of air if the volume fraction of oxygen in the air is 21%.
September 5, 2021 | education
| Given: V (air) – 400 l
ϕ (О2) – 21%
find: V (sour)
V (acid) = V (air) * ϕ (О2)
V (sour) = 400l * 21% = 84l
Answer: V (sour) = 84 l
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