An 8 liter mixture of nitrogen and oxygen contains 2 liters of oxygen. Calculate the volume fraction (φ) of oxygen in this mixture.
| December 3, 2020 | education
φ (gas) = V (gas) / V (mixture) * 100%
The total volume of the mixture = 8 l (as required)
φ (gas) = V (gas) / V (mixture) = 2 \ 8 * 100% = 25%
Answer: φ (O2) = 25%
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