laurasmith123890 laurasmith123890

17-01-2020
Chemistry

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the partial pressure of oxygen in a sample of air is 452 mm Mercury and the total pressure is 780 mm Mercury what is the mole fraction of oxygen?

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anfabba15 anfabba15

18-01-2020

Answer:

Mole fraction O₂ = 452 mmHg/ 780mmHg → 0.579

Explanation:

Mole fraction is defined as the quotient between Partial Pressure of a gas, in a mixture and the Total Pressure from the mixture

Partial pressure of a gas/ Total pressure

Mole fraction O₂ = 452 mmHg/ 780mmHg → 0.579

Be careful, because mole fraction doesn't have units

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