Question

HW U6M2a Equilibrium Constant A Homework. Unanswered Aniline (C6H5NH) has a pK) = 9.13. What is the value of the equilibrium constant for this reaction: C6H5NH2(aq) + H2O(l) = C6H5NH(aq) + OH(aq)? 1.35x10-5 O B 7.41x10-10 O C More information is needed to decide O D 4.35x10-7 1 attempt left. Change your responses to resubmit Answered - Incorrect

Answer 1

1)

pKb = 9.13

Kb = 10^-pKb

       = 10^-9.13

      = 7.41 x 10^-10

Kb = 7.41 x 10^-10

answer : b) 7.41 x 10^-10

2)

pKb = 3.25

Kb = 10^-pKb

Kb = 10^-3.25

Kb = 5.62 x 10^-4

for :

Ka x Kb = 10^-14

Ka x 5.62 x 10^-4 = 10^-14

Ka = 1.77 x 10^-11

answer : A) 1.77 x 10^-11