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1 January, 08:01

A mixture of He, He, Ne, Ne, and Ar Ar has a pressure of 18.8 atm 18.8 atm at 28.0 °C. If the partial pressure of He He is 2.94 atm 2.94 atm and the partial pressure of Ar Ar is 4.27 atm, 4.27 atm, what is the partial pressure of Ne? Ne?

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  1. 1 January, 10:11
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    Partial pressure Ne → 11.95 atm

    Explanation:

    If we state Dalton's law, the sum of partial pressure of each gas, in a mixture of gases, is the total pressure from the mixture:

    Gases from the mixture are: He, Ne and Ar

    Partial pressure Ar: 4.27 atm

    Partial pressre He: 2.94 atm

    Partial pressure Ne:?

    Total pressure = 18.8 atm

    Partial pressure Ar + Partial pressure He + Partial pressure Ne = 18.8 atm

    4.27 atm + 2.94 atm + Partial pressure Ne = 18.8 atm

    Partial pressure Ne = 18.8 atm - 4.27 atm - 2.64 atm → 11.95 atm
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