95 S 16.95 In the vapor phase, acetic acid molecules associate toa certain extent to form dimers:2CH;COOH(g) – (CH,COOH),(g)At 51°C, the pressure of a certain acetic acid vaporsystem is 0.0342 atm in a 360-mL flask. The vapor iscondensed and neutralized with 13.8 mL of 0.0568 MNaOH. (a) Calculate the degree of dissociation (a) ofthe dimer under these conditions:(CH-COОH)2 2CH,СООН(Hint: See Problem 15.65 for general procedure.)(b) Calculate the equilibrium constant Kp for thereaction in (a).

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Chapter13: Acids And Bases

Section: Chapter Questions

Problem 58QAP: Consider citric acid, H3C6H5O7, added to many soft drinks. The equilibrium constants for its...

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Question

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S 16.95 In the vapor phase, acetic acid molecules associate to
a certain extent to form dimers:
2CH;COOH(g) – (CH,COOH),(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:
(CH-COОH)2 2CH,СООН
(Hint: See Problem 15.65 for general procedure.)
(b) Calculate the equilibrium constant Kp for the
reaction in (a).

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