Question

a tank contains helium gas at 490 mmHg, nitrogen gas at 0.75 atm, and neon at 520 torr. What is the total pressure in atm?

Answer 1

Dalton's Law says that the total pressure of a system is the sum of the individual partial pressures of any gas(es) present.

Answer 2

If you convert torr and mmHg to atm ( by dividing them by 760) and add all the atm together you get 2.07