A 2.5L flask @ 15 degrees C cntains three gases. The partial pressure of N2 is 0.32 atm, and the partial pressure of the other two gases, He and Ne are 0.15 atm and 0.42atm respectivly. What is the total pressure in atm on the 2.5L flask?

Answer 1

Remember Dalton's Law that
Ptotal = Pgas1 + Pgas2 + Pgas3 + .....