Three glass bulbs, joined by closed stopcocks, have the following volumes and initial pressures of the specified gases. Bulb A: 150. mL of CO₂(g) at 570. torr Bulb B: 300. mL of He(g) at 0.250 atm Bulb C: 750. mL of Ar(g) at 50.663 kPa After both stopcocks are opened and the gases allowed to diffuse throughout, what will be the final total pressure? (The ambient temperature is constant.) P_total =

What is the partial pressure of He(g)? P_He =

What is the mole fraction of CO₂(g)? _CO2 =