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A gas mixture with a total pressure of 770 mmHg contains each of the following gases...

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Chemistry

A gas mixture with a total pressure of 770 mmHg contains each ofthe following gases at the indicated partial pressures: 133 mmHgCO2, 233 mmHg Ar, and 183 mmHg O2. The mixture also contains heliumgas.What is the partial pressure of the helium gas?

Answer & Explanation Solved by verified expert
4.5 Ratings (753 Votes)

Solution :-

Total pressure = 770 mmHg

partial pressure of CO2 = 133 mmHg

partial pressure of Ar = 233 mmHg

partial pressure of O2 = 183 mmHg

partial pressure of He= ?

Total pressure is the sum of the partial pressure of the all gases in the mixture

therefore

parital pressure of the He = total pressure - ( P CO2 + P Ar + P O2)

                                         = 770 mmHg - ( 133 mmHg + 233 mmHg + 183 mmHg)

                                         = 221 mmHg

Therefore the parital pressure of the He = 221 mmHg
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