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A mixture of Helium and Neon gases exhibits a total pressure of 463mm Hg. If the...

A mixture of Helium and Neon gases exhibits a total pressure of 463mm Hg. If the partial pressure of helium is 128mm Hg, what is the mole fraction of neon?

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individual partial presure Sum of PTotal = is equal to tolal. pressure. Pne + Pre = 463 mming, But we are given that I Pue=12

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