Assuming standard valencies (C = 4, H = 1, N = 3, 0 = 2, and X = 1), a compound with molecular formula C34H23F6N5010 has how many rings plus unsaturations?
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A: The Newman projection of ethane-1,2-diol is drawn as,
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- Which set is considered as stereo isomers among below: Br xx u u xohr Br Br H₂C g) h) i) 8- & Br CH₂ D H₂C 0:08 Br H₂C CH3CH2CH2CH2CH3 CH3CH(CH3)OCH2CH3 2-Methylbutane 2-Methylpropane CH₂ H₂C, Br & H CH₂ 3-Methylpentane (15 iso-Butane CH₂ -0:11What is the degree of unsaturation for compoundC11H7ClO?Explain the following which one exists (i) K19= 1s² 2s² 2p° 3s² 3p° 4s' and 1s² 2s² 2p° 3s² 3p° 3d' (ii) 11I (More stable) (Less stable)
- Cyclohex-2-enone has two protons on its carbon-carbon double bond (labeled Ha and Hb) and two protons on the carbon adjacent to the double bond (labeled Hc). (a) If Jab = 11 Hz and Jbc = 4 Hz, sketch the splitting pattern observed for each proton on the sp2 hybridized carbons. (b) Despite the fact that Ha is located adjacent to an electron-withdrawing C=O, its absorption occurs upfield from the signal due to Hb (6.0 vs. 7.0 ppm). Offer an explanation.Compounds 1 and 2 were prepared, and the difference in their heats of combustion was found to be 17.2 kJ/mol (J. Am. Chem. Soc. 1961, 83, 606-614): H H 1 Shown below are the lowest-energy conformations of compounds 1 and 2. Identify which drawing matches which compound, and identify which compound has the larger heat of combustion. H H H H |||I 2 H 4 H H The first drawing is compound 1, and compound 1 has a larger heat of combustion because it is the less stable compound. O The first drawing is compound 2, and compound 2 has a larger heat of combustion because it is the less stable compound. The first drawing is compound 2, and compound 2 has a larger heat of combustion because it is the more stable compound. The first drawing is compound 1, and compound 1 has a larger heat of combustion because it is the more stable compound.For 1-bromopropane, which of these staggered Newman projections has the lowest energy? CH3 H Br- Br Br- H `H H3C CH3 А В C Structure with the lowest energy:
- Cyclohex-2-enone has two protons on its carbon–carbon double bond (labeled Ha and Hb) and two protons on the carbon adjacent to the double bond (labeled Hc). (a) If Jab = 11 Hz and Jbc = 4 Hz, sketch the splitting pattern observed for each proton on the sp2 hybridized carbons. (b) Despite the fact that Ha is located adjacent to an electron-withdrawing C = O, its absorption occurs upeld from the signal due to Hb (6.0 vs. 7.0 ppm). Offer an explanation.Rings + Unsaturation --- Hydrogenation If compound A C51H81BrN5O3P3 is hydrogenated to give compound B C51H101BrN5O3P3. How many rings does compound A have? Assume that P has a valency of 5. Would the answer be 4 rings? Formula -> unsat + rings = 1+C +N/2 - H/2 - X/23. Assign E or Z stereochemistry to the following alkenes: (a) НОСН2 CH3 (b) HO2C H C=C C=C H3C CI OCH3 (c) NC CH3 (d) CH3O2C CH=CH2 C=C C=C CH3CH2 CH2OH HO2C CH2CH3 4. Classify the following reactions as additions, eliminations, substitutions, or rearrangements: (а) CН3Br + KоН — СH3ОН + KBr (b) CH3CH2C1 + NaOH → (c) H2C=CH2 + H2 H2C=CH2 + NaCl CH3CH3 5. Which of the following are most likely to behave as electrophiles, and which as nucleophiles? Explain. (a) NH4+ (b) C=N- (c) Br+ (d) CH3NΗ, (е) Н—С—С-—н
- (i) how many bonds does the molecule have? (ii) how many unhybridized p-orbitals total does the carbon labeled (b) have? (iii) how many unhybridized p-orbitals total does the carbon labeled (a) have? H-CEC-N (a) c=c=Ö: (b) H HPlease help with 4c, 4d, and 4e. We havent learned kaw of equivalents so please do 4c a different way. thank youDraw both cis- and trans-1,4-dimethylcyclohexane in their more stable chair conformations. 5-72 (a) How many stereoisomers are there of cis-1,4-dimethylcyclohexane, and how many of trans-1,4-dimethylcyclohexane? (b) Are any of the structures chiral? (c) What are the stereochemical relationships among the various stereoisomers of 1,4-dimethylcyclohexane?