Ethanol, CH3CH2OH, had a pka value of 15.9 while acetic acid, CH2COOH, has a pka value of 4.74. What is the keq for the reaction of the conjugate base of ethanol with acetic acid? t(s) 4.3 x 10 20 O 1.4 x 10 11 O 1.8 x 105 O 1.3 x 10-16 6.9 x 10-12