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find out the partial pressure. find out the total pressure and volume in liters at STP of Nitrogen, Helium and Neon mixture.

A mixture of gases contains 0.31 mol CH4 0.25 mol C2H8. The total pressures of the gases. A 2.5L flask at 15°C contains a mixture of N2 0.15 atm for He, and 0.42 atm for Ne.

(a) compute the total pressure of the mixture.

(b) compute the volume in liters at STP occupied by He and Ne if the N2 is removed selectively.

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