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. (4O " points) Piperazine (perhydro—1,4-diazine), HQN NH; is a weak diprotic base with base ionization constants,
Kbl = 5.38 x 10'5 and Km: 2.15 x 10'9 at 25°C. a. (10 points) Write down balanced reactions for the ﬁrst and second base hydrolysis of piperaZine in water. b. (10 points) Write down the equilibrium expressions for the ﬁrst and second base hydrolysis of piperazine. Here, you may abbreviate the neutral form of piperazine as “PIP”. ...
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- Spring '13