The gases in a mixture have the following partial pressures at the same volume and temperature: 1,013,000 Pa nitrogen, 700. mmHg argon, 1.20 atm of helium, 790. torr oxygen, and 0.50 atm of carbon dioxide. What is the total pressure of the mixture in atm?

Answer 1

Convert each of the pressures to atm, then add them.
760 torr = 1 atm
1.01325 x 10^5 Pa = 1 atm.