tion 7 of 20 > Select the best description of the relationship between the pair of compounds. H H. H3C CH3 ~Xx Xx CH3 H H The compounds are: ΟΟΟΟ constitutional isomers diastereomers not isomers enantiomers CH3
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- Draw the lewis structures of all possible contitutional (structural) isomers of Benzamide (C7H7NO). If not mistaken degrees of unsaturation are 5. Make sure to include all H bonds in the drawings pleasehow many possible consitutional isomers are there for C2H4Cl2?Classify the following compounds as E and Z structures as applicable:
- Most naturally occurring amino acids have chiral centers (the asymmetric a carbon atoms)that are named (S) by the Cahn–Ingold–Prelog convention (Section 5-3). The commonnaturally occurring form of cysteine has a chiral center that is named (R), however.(a) What is the relationship between (R)-cysteine and (S)-alanine? Do they have the oppositethree-dimensional configuration (as the names might suggest) or the same configuration?(b) (S)-Alanine is an l-amino acid (Figure 24-2). Is (R)-cysteine a d-amino acid or anl-amino acid?which carbons are tertiary (3°) and quaternary (4°)?1. Write all the posible Cis-configurations and trans-configuration isomers of CH3CH2CH2CH=CHCH2CH3. 2. E and Z isomers of (indicated in the image uploaded) .
- Giventhefollowingsetofreactionsandtheirenthalpies,drawtheBorn-Habercyclefortheformationof LiCl(s)anddeterminethelatticeenergyforLiCl.Reactions:H (in kJ)(1)Li(s)Li(g);Hs= 161;(2) Li(g)Li+(g)+e–;IE= 520;(3) ½Cl2(g)Cl(g);½BE =121.5;(4)Cl(g)+ e–Cl–(g);EA= –349;(5)Li+(g)+ Cl–(g)LiCl(s);UL= ?(UL= latticeenergy)(6) Li(s)+ ½ Cl2(g)LiCl(s);Hof=–408.6._______________________________________________________________________________Iodide ion reacts with chloromethane to displace chlorideion in a common organic substitution reaction: I⁻+CH3Cl →CH3I+Cl⁻ (a) Draw a wedge-bond structure of chloroform and indicatethe most effective direction of Iattack.(b) The analogous reaction with 2-chlorobutane [FigureP16.107(b)] results in a major change in specific rotation asmeasured by polarimetry. Explain, showing a wedge-bondstructure of the product.(c) Under different conditions, 2-chlorobutane loses Clin arate-determining step to form a planar intermediate [FigureP16.107(c)]. This cationic species reacts with HI and then losesHto form a product that exhibits no optical activity. Explain,showing a wedge-bond structure.give a name of any compound which is isostructural with XeF2