Explain how the above process separate copper from a solution of copper

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)

Lewis structure and molecular geometry for nh2cl

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )