4. Consider the reaction: 2 SO2(g) + O2(g) 3 2 SO:(g) A 2.0 L flask was filled with 0.0400 moles of SO, and 0.0200 moles of O2. At equilibrium 0.0296 moles of SO, were found. What is the equilibrium constant for this reaction? A) 2.556 x 10 B) 3.664 x 10 C) 6.953 x 102 D) 9.964 x 102 E) 3.116 x 10 5. What is a conjugate acid-base pair for the following equilibrium? H2O(l) + HSO4 (aq) = H2SO4(aq) + OH(aq) A) H.O is an acid and HSO4 is its conjugate base. B) H.O is an acid and OH is its conjugate base. C) HSO4 is an acid and OH is its conjugate base. D) HSO4 is an acid and H2SO4 is its conjugate base E) HSO is an acid and H.O is its conjugate base.