Match these items. assumes constant pressure

Amixture of gaseous sulfur dioxide and oxygen are added to a reaction vessel and heated to 1000 k where they react to form so3(g). if the vessel contains 0.669 atm so2(g), 0.395 atm o2(g), and 0.0851 atm so3(g) after the system has reached equilibrium, what is the equilibrium constant kp for the reaction: 2 so2(g) o2(g) ⇌ 2 so3(g)

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?