3 Molecular Structures (Sawhorse basic) 3.1 Do not worry about conformation. I just want to see you draw the sawhorse projections. Please Use Wedge and dashes. 3.1.1 Methane 3.1.2 Ethane 3.1.3 Propane
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- 17. Which of the following structures are constitutional isomers? CH3 CH3 CH3 CH3 H3C II III IV O A.I, II, & II B. I, II, & IV C.I& II D. All are constitutional isomers E. All are configurational isomers 18. What is the IUPAC name of the compound shown below? CH3 CH(CH3)2 H,C H. A. 1,2,3-Trimethylbutane B. 2,3-Dimethylpentane C. 2,3,4-Trimethylpentane D. 2-1sopropylbutane OE 22,3-Trimethylbutane O O OO0ball & stick v + labels Which of the Newman structures below represents this conformation of 3-chloro-2-methylpentane, as viewed along the C2-C3 bond? ***** CH3 Et H Et Et. .CI H3C. CH3 Et. H3C. H3C H. TCI H3C CH3 H. ČH3 H ČH3 a b d (Enter the letter(s) of the correct structure(s), in alphabetical order and without punctuation; more than one answer may be correct. Et = an ethyl group)C. Exercises 1. Which molecule representation best shows the bond interactions? a. Wedge and dash b. Sawhorse c. Newman d. Fischer Which molecule representation best combines the 3D molecule and the bond interactions? a. Wedge and dash b. Sawhorse c. Newman d. Fischer 3. Which molecule representation best showws the 3D model? a. Wedge and dash b. Sawhorse c. Newman d. Fischer 4. Staggered and eclipsed conformations are best shown using which projection? a. Wedge and dash b. Sawhorse c. Newman d. Fischer 5. Which is a more stable conformation? a. Eclipsed ethane b. Staggered ethane
- The chemical structure of propane (C3H3) is provided below. Which of the following isomers is propane able to form? Briefly justify your answer (2- 3 sentences) A. Structural isomer B. Cis-trans isomer C. Enantiomer D. All of the above E. None of the above н ннн H-C-C-C-H H. ннн H.For the following structural formula, pick the structure that accurately represents its MOST STABLE conformation. CH3 H₂Cl... Br Br Br H₂C O D. O B. O C. O A. CH3 A CH3 B CH3 ... Br 주 Br H3C C CH3 H3C CH3 D1, 3, 2 d. 3, 1, 2 e. 3, 2, 1 Choose the correct specific configuration (R & S) for C2 and C3 in the Question 25 structure (pdf document). a. C2 (R) & C3 (S) b. C2 (S) & C3 (S) c. C2 (S) & C3 (R) d. C2 (R) & C3 (R) US PAGE NEXT gation
- Preview File Edit U2HW5.pdf **** 1 2 دارد و در وارد View Go Tools Window Help U2HW5.pdf V Search Page 1 of 2 5A.2 Convert the following to skeletal structures and determine the IUPAC name. a) b) c) H H3CH₂CH3 CH3 CH₂CH3 H CH,CH2CH3 H O H3C H d) H H3 C H3C. H₁ 22 H CH2CH2CH3 H3C. CH2CH2CH3 H3C CH3 H CH(CH3)2 H CH3 5A.3 Rank the following conformational isomers from least stable to most stable. a) CH₂ H ÇUL H >CH(CH3)2 tv A W P CH3 CH 496 }] JUN 10 H3C e) P H H3C X H ((. Ơ 00 Fri Jun 10 1:26 AM Fall 2021 Spring 2022 Screen Shot 2022-0...49.34 PM Organic Chemistry Online + Lab Screen Shot 2022-0...23.23 PM Screen Shot 2022-0....13.53 AM Screen Shot 2022-0...23.27 AM 9 etcoChoose the correct structure for each of the following compounds. a. an alcohol with molecular formula C₂H6O O CH3 CH₂-O-CH3 O CH3-C-H OCH3-CH₂-OH O CH3-O-CH3 b. an aldehyde with molecular formula C3H$O ů OCH, CCH, O CH3-CH₂-O-CH3 OCH3 CH₂-CH OH CH3-CH-CH3Which of these structures represents an improper structure (one in which one or more atoms does not have the normal number of bonds)? CH₂ CH₂ CH,CH,CH,CH, CHy (1) H₂C 000000 CH₂ CH₂ (1) (2) (3) (4) (5) (6) CH₂ CH₂ (4) CH3 H₂C CH₂ (2) CH₂CHCH₂CH₂ CH₂ (5) (CH3C CH₂CH(CH3)2 (3) (CH3CH₂CH₂CH3)2 (6)
- 4. Using IUPAC guidelines, name the following organic compounds in the space provided beneath each molecule. A. B. C. IUPAC Name HHHHHH TI H-C-C-C =C-C-H H | H HH-C-H H-C-H H CH₂-CH₂ CH₂ I CH₂-C-CH₂- CH₂ I CH₂ H >< CH₂ CH₂CH CH₂ -CH₂ CH₂ ϲ CH₂3. Classify the alcohols shown below as primary, secondary, or tertiary. A) secondary B) primary C) tertiary 1) CH3 - CH2 - OH 2) CH3 | CH3 - C - CH2 - OH | CH3 3) OH | CH3 - CH - CH3 4) 5) CH3 | CH3 - C - CH2 - CH3 | OH 4. Identify the product, if any, that would form in each of the following reactions. A) CH3 - CH3 B) CH3 - CH2 - CH3 C) OH | CH3 - C H - CH3 D) O CH3 - C - OH E) CH3 - CH2 - OH 1) O CH3 – C - H 2) O CH3 - C - CH3 + H2 3) O CH3 - C - H + H2Consider the energy diagram showing the conformational analysis of propane. Select the number that corresponds to the correct conformation. úr H. H energy H 180 HH H CH3 H. ***** H H H CH3 CH3 0 dihedral angle H H HCH3 H H 180 IV HCH3 H H V CH 3