Asked by nick
What fraction of piperazine (perhydro-1,4-diazine) is in each of its three forms (H2A, HA–, A2–) at pH 8.67? The acid dissociation constant values for piperazine are Ka1 = 4.65×10–6 and Ka2 = 1.86×10–10.
Answers
Answered by
DrBob222
You do these using the alpha system.
The denominator of the fraction is
D = (H^+)^2 + k1*(H^+) + k1k1
alphao = (H2A) = (H^+)^2/D
alpha1 = (HA^-) = k1*(H^+)/D
alpha2 = (A^2-) = k1k2/D
Plug in the numbers and solve.
The denominator of the fraction is
D = (H^+)^2 + k1*(H^+) + k1k1
alphao = (H2A) = (H^+)^2/D
alpha1 = (HA^-) = k1*(H^+)/D
alpha2 = (A^2-) = k1k2/D
Plug in the numbers and solve.
Answered by
Ashley
THIS IS WRONG. DR. BOB IS WRONG YET AGAIN. DON'T WASTE YOUR TIME LOOKING AT THIS.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.