CHEM 345 Final: CHEM340 Washington State Final Exam answer
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No aid is to be given to or received from another person. Model set and calculator may be used, but cannot be shared. Wsu id number at the top of each page. Hand in your exam papers to the proctor and sign your name at the end of the test. Q6 out of 15 out of 16 out of 20 out of 20 out of 14 out of 15. Question 1 (15 points: list the pka values for the following acids. (5 points) 16: explain why aniline is a weaker base than cyclohexyl amine. (5 points) The pka values of protonated aniline and cyclohexyl amine are 4. 6 and 11. 2, respectively. The lone pair electrons on the nitrogen of aniline can be delocalized into the benzene ring. However, once protonated, there is no lone pair of electrons available for delocalization in the protonated form of aniline (conjugated acid).
