Question

A gaseous mixture containing 128.89 g N2 and 242.06 g CO2 has a total pressure of 9.0 atm. What is the partial pressure of N2?

Answer 1

Here's how you find partial pressure:
1) Find moles of each gas on mixture/system/whatever.
2) Find total moles.
3) Use that to find the mole fraction of the desired molecule.
4) Multiply total pressure by mole fraction.