Part A) Find the pressure in mmHg of a 0.124 g sample of helium
gas in a 649 mL container at 34 ∘C. Express the pressure to three
significant figures and include the appropriate units.
Part B) xture with a total pressure of 770 mmHg contains each of
the following gases at the indicated partial pressures: 140 mmHg
CO2, 112 mmHg Ar, and 128 mmHg O2. The mixture also contains helium
gas.
What is the partial pressure of the helium...