exam-fall97

exam-fall97 - .43. ,I a." Hour Exam #1 Last Name...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: .43. ,I a." Hour Exam #1 Last Name Chemistry 343 _ . Professor Gellman General Instructions: ' (i) Use scratch paper at back of exam to work out answers; final answers must be recgdrded at the proper place on the exam itself for credit. Models are allow . __ (ii) Print your name each page. (iii) Please keep your paper covered and your eyes on your own work. Misconduct will lead to failure in the course. 1. (10 points) Provide IUPAC names for the following structures. J (a) ?' CH—CH3 Hzc—CH2-—CH3 H3C—CH2—CH— (b) CH2“CH3 CH2-CH2 \CHs Z _ ‘ Name 2. (10 points) shown below is the equation for a reaction, and the beginning of a mechanism. Complete the mechanism by drawing in the curved arrows that indicate the flow of electrons for each step. Overall reaction: (CHathr + Neel—n- (CHakCCI «1- Near Mechanism: H30 "3° 0 ' .x . (9 H3OEE3—Br :(L‘lO Na® —-—I-- "scare 'c' "8 "3° ' "ac :Bc? H30 Hak;C—Cl :BQNeG) H3O ' - 3. (10 points) Give structures that corres ' d to the following names. Indicate all atoms in your structures explicitly, lncludflglhydrogens. (a) 2-cyclobutyl-a-n1ethylpentane (b) 1,1-dibromo-3-ethylhexane .‘ _ Name .4. (21 polnts) For each molecule below, provide a drawing that unambiguoust shows the most stable contormntion. _ (a) CH3'_03'|2'Cflz—Bf' "3° Hac\\c/CH3 (b) ' ca, (0) EH, __ 5. (27 points) For each pair of isomers below, circle the one expected to have the greater internal strain. m explain your reasoning, using conformationally ' Informative drawings to illustrate your arguments: (a) “\Q/u: men, V8. CH: (D) Y\/'\ 'vs; AW (0} vs. 6. (22 points) P’\ r” ‘ 1 (a) What is themolecular formula of oyclohaxane? (b) What is the molecular formula of n-hexane? "(c) Draw 10 lsomers of manual». ...
View Full Document

This note was uploaded on 03/30/2008 for the course CHEM 343 taught by Professor Whitlock during the Spring '07 term at Wisconsin.

Page1 / 5

exam-fall97 - .43. ,I a." Hour Exam #1 Last Name...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online