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Sp08FinalQues - NAME(Print SIGNATURE Chemistry 310N Dr...

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Chemistry 310N Dr. Brent Iverson Final May 8, 2008 NAME (Print): _____________________________ SIGNATURE: _____________________________ Please Note: This test may be a bit long, but there is a reason. I would like to give you a lot of little questions, so you can find ones you can answer and show me what you know, rather than just a few questions that may be testing the one thing you forgot. I recommend you look the exam over and answer the questions you are sure of first , then go back and try to figure out the rest. Also make sure to look at the point totals on the questions as a guide to help budget your time. Note: You must have your answers written in pen if you want a regrade!!!! Please print the first three letters of your last name in the three boxes For synthesis problems GO FOR PARTIAL CREDIT EVEN IF YOU DO NOT KNOW THE ENTIRE ANSWER!!!WRITE DOWN WHAT YOU DO KNOW IS IN THE REACTION SEQUENCE SOMEWHERE. YOU WILL GET PARTIAL CREDIT IF IT IS CORRECT
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Honor Code The core values of the University of Texas at Austin are learning, discovery, freedom, leadership, individual opportunity, and responsibility. Each member of the University is expected to uphold these values through integrity, honesty, trust, fairness, and respect toward peers and community. (Your signature)
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CH 3 CH 2 - H R 2 C C H H H -N( i- C 3 H 7 ) 2 RC C H COR' O RC H 2 CR' O RC H 2 CH O RC H 2 CCl O RC H 2 RCH 2 O H HO H ROC O COR' O C H 2 RC O COR' O C H 2 RC O CR' O C H 2 H 4 N CO- H O R RCH 2 O H 2 H 3 O H -Cl 10 51 -7 Compound pK a 3-5 15.7 16 18-20 11 23-25 18-20 13 15-19 40 Carboxylic acids ! -Dicarbonyls ! -Ketoesters ! -Diesters Water Alcohols Acid chlorides Aldehydes Ketones Esters LDA Alkanes Terminal alkynes 25 Terminal alkenes 44 9.2 Ammonium ion Hydronium ion Hydrochloric acid Protonated alcohol -2 -1.7 C O R -0.5 Protonated Amide N H 3
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Pg 1 _____________(30) Signature_________________________ 1. (14 points) Suppose a relative of yours is having an MRI. In no more than four sentences, explain to them what is happening when they have the MRI scan. We will be looking for a minumum of 7 key points here. 2. (1 pt each) Fill in each blank with the word that best completes the following sentences about NMR. For organic chemistry, NMR is primarily concerned with atoms having a spin quantum number of ________. The two most important isotopes for organic chemistry structure determination by NMR are _________ and ________. Of these two, ________ is a common isotope and the predominant isotope found in molecules, while ________ is very rare. The key to the NMR experiment is that in a strong external ________________ field, the difference in energy between nuclear spin states is ________________ to that field. For 1H atoms, the two nuclear spin states are referred to as +________ and -________. When irradiated with electromagnetic radiation of a wavelength that corresponds to the exact energy difference between nuclear spin states, the energy is absorbed, a process referred to as __________________. The wavelength used for irradiation is in the __________________ __________________ range of the electromagnetic spectrum.
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