# Problem: A 2.45-L flexible flask at 15°C contains a mixture of N2, He, and Ne at partial pressures of 0.283 atm for N2, 0.151 atm for He, and 0.425 atm for Ne. (a) Calculate the total pressure of the mixture in atm.(b) Calculate the volume in liters at STP occupied by He and Ne if the N 2 is removed selectively.

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###### FREE Expert Solution

PART A

To calculate the total pressure we simply get the sum of the partial pressures. ###### Problem Details

A 2.45-L flexible flask at 15°C contains a mixture of N2, He, and Ne at partial pressures of 0.283 atm for N2, 0.151 atm for He, and 0.425 atm for Ne.

(a) Calculate the total pressure of the mixture in atm.

(b) Calculate the volume in liters at STP occupied by He and Ne if the N 2 is removed selectively.

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Standard Temperature and Pressure concept. You can view video lessons to learn Standard Temperature and Pressure. Or if you need more Standard Temperature and Pressure practice, you can also practice Standard Temperature and Pressure practice problems.

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Based on our data, we think this problem is relevant for Professor Gupta's class at UML.