In the vapor phase, acetic acid molecules associate to a certain extent to form dimers:
2CH3COOH(g2 → (CH3COOH)2(g)
At 51°C the pressure of a certain acetic acid vapor system is 0.0342 atm in a 360-mL flask. The vapor is condensed and neutralized with 13.8 mL of 0.0568 M NaOH.
(a) Calculate the degree of dissociation (a) of the dimer under these conditions:
(CH3COOH)2 → 2CH3COOH
(See Problem 14.111 for general procedure.)
(b) Calculate the equilibrium constant KP for the reaction in (a).