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1. How many degrees does the front carbon have to be rotated to result in an...
Which of the following are inter-convertible by rotation around single bonds? cis- & trans-alkene b. Constitutional...
Which of the following are inter-convertible by rotation around single bonds? cis- & trans-alkene b. Constitutional isomers c. chair & boat cyclohexane d. enantiomers d. More than one of the above a. Which of the following objects is/are chiral? Circle all possible answers. a. c. Human nose d. Human ear a fork b. a spoon e. a ball Which of the following isomers do not have the same connectivity? a. Stereoisomers b. Chair and boat conformations of cyclohexane c. Constitutionl...
with explanation 1) Draw a chair conformation of cyclohexane. Then, draw and level properly all axial...
with explanation
1) Draw a chair conformation of cyclohexane. Then, draw and level properly all axial and equatorial positions on chair form of cyclohexane. 2) Draw chair, half-chair and boat conformations of ethyl cyclohexane and draw an energy diagram to explain their relative stability: 3) Draw two possible chair conformations for each of the mono-substituted cyclohexanes and determine their relative stability with proper explanation. OH 4) Draw two possible chair conformations for each of the di-substituted cyclohexanes and determine their...
Can you answer the questions given in the photos above? The sec-butyl cation can react as...
Can you answer the questions given in the photos
above?
The sec-butyl cation can react as both a Lewis acid and a Brønsted- Lowry acid in the presence of a water-sulfuric acid mixture. In each case, however, the product is different. The two reactions are: 2. H2o +H3O+ a. In which reaction does this cation react as a Lewis acid? In which does it react as a Brønsted-Lowry acid? b. Write Lewis structures for reactants and products and show by...
CHEM2033 EXAMINATIO .2 (atomic numbers: C-6, Н-1,0-8. C-17, Br-35 ) 1. The IUPAC name of the...
CHEM2033 EXAMINATIO .2 (atomic numbers: C-6, Н-1,0-8. C-17, Br-35 ) 1. The IUPAC name of the compound Test/28 (A) 2-methyl, 4-ethyl pentane B) 2-ethyl, 4-methyl hexne (E) 2,4-dimethyl hexane (4ethyl, 2-methylI hexane 2. Which of the following compound has no chiral center 3. The bond angles in methane and ethyne are 4. The most unstable 1,4-dimethyl cyclohexane conformation (D) 3-ethyl,5-methyl hexane (A) 2-butanol (B) 2-chloro butane (C) 1,2-dichloro butane (D) 1,3-dichloro butane (E) 1.,4-dichloro butane (A) 109.5° and 120 (B)...
Make3 a model of cyclopentane. Does this molecule seem to have any ring strain in the...
Make3 a model of cyclopentane. Does this molecule seem to have any ring strain in the sense that the three and four-membred rings do? The molecule is not completely strin-free because there is some eclipsing. Identify the eclipsed atoms or groups when the molecule is planar. In fact the molecule is not planar, but is puckered in either of two ways; (i) One C-atom is abover or below the plane defined by the other four coplanar C-atoms defining an envelope...
Page C 1) What functional group is NOT present in the structure below? a. alkyne b....
Page C 1) What functional group is NOT present in the structure below? a. alkyne b. alkene c. ether d. aldehyde e. amine 2) What is the correct IUPAC name for the molecule below? a. 3-tert-butyl-4-methylhexane b. 3-tert-butyl-4-methylpentane c. neononane d. 3.ethyl-2,2,4-trimethylpentane e. 1-ethyl-1-isopropyl-tert-butane 3) Which molecule will have the highest boiling point? tinio 4) How many different constitutional isomers may be formed upon monochlorination with Cly/light of the alkane shown below? 5) How many secondary hydrogen atoms are present...
Laboratory Work 1. Draw the skeletal formulas and make models of the three constitutional isomers of...
Laboratory Work 1. Draw the skeletal formulas and make models of the three constitutional isomers of C5H12. 2. Draw Kekule structures and make models of all the constitutional isomers of C2H4Cl2. 3. Draw Kekule formulas and make models of ethane, ethene, and ethyne. How does the geometry of their structures differ? Which compound contains sp hybridized carbons? 4. Draw and label the Newman projection and make the model of the anti-conformation of 1,2-dibromoethane. Rotate around the carbon-carbon bond...
4. Draw the most stable and most unstable Newman Projection for the following molecules using the...
4. Draw the most stable and most unstable Newman Projection for the following molecules using the rotation around the C3-C4 bond (use the IUPAC rules to number the chain) 5. Draw the two chair conformations for each of the following cyclohexane derivatives and then choose the conformation that is the most stable. Br BA 3 3 3 $ 2879 So ya 6. For the following compounds, identify the chiral carbons with an asterisk (*) and for those that are not...
1. In the structure of the antibiotic Aztreonam illustrated below, how many nitrogen atoms have a...
1. In the structure of the antibiotic Aztreonam illustrated
below, how many nitrogen atoms have a sp2 hybridization
state?
2. What is the number of oxygen atoms on which the negative
charge will resonate by following relevant resonance structures?
(0,1,2,3,4 or 5)
3. Identify the stereochemistry of each of these double bonds
marked 1 and 2 in the structure below ((E) or (Z))
4. What is the absolute configuration of the following molecule?
(R/S)
5. Determine the relationship between these...
6. Build the cyclobutane ring and study the angle strain and torsional strain. Draw the structures to explain thes...
6. Build the cyclobutane ring and study the angle strain and torsional strain. Draw the structures to explain these factors. 7. The conformation of cyclobutane is slightly folded. Folding gives partial relief from the eclipsing of bonds, as shown in the Newman projection. Compare this actual structure with the hypothetical planar structure. Draw the relevant structures. 8. trans-1,2-Dimethylcyclobutane is more stable than cis-1,2-dimethylcyclobutane, but cis-1,3- dimethylcyclobutane is more stable than trans-1,3-dimethylcyclobutane. Use the molecular models to find the reasons for...
Which of the following are inter-convertible by rotation around single bonds? cis- & trans-alkene b. Constitutional isomers c. chair & boat cyclohexane d. enantiomers d. More than one of the above a. Which of the following objects is/are chiral? Circle all possible answers. a. c. Human nose d. Human ear a fork b. a spoon e. a ball Which of the following isomers do not have the same connectivity? a. Stereoisomers b. Chair and boat conformations of cyclohexane c. Constitutionl...
with explanation
1) Draw a chair conformation of cyclohexane. Then, draw and level properly all axial and equatorial positions on chair form of cyclohexane. 2) Draw chair, half-chair and boat conformations of ethyl cyclohexane and draw an energy diagram to explain their relative stability: 3) Draw two possible chair conformations for each of the mono-substituted cyclohexanes and determine their relative stability with proper explanation. OH 4) Draw two possible chair conformations for each of the di-substituted cyclohexanes and determine their...
Can you answer the questions given in the photos
above?
The sec-butyl cation can react as both a Lewis acid and a Brønsted- Lowry acid in the presence of a water-sulfuric acid mixture. In each case, however, the product is different. The two reactions are: 2. H2o +H3O+ a. In which reaction does this cation react as a Lewis acid? In which does it react as a Brønsted-Lowry acid? b. Write Lewis structures for reactants and products and show by...
CHEM2033 EXAMINATIO .2 (atomic numbers: C-6, Н-1,0-8. C-17, Br-35 ) 1. The IUPAC name of the compound Test/28 (A) 2-methyl, 4-ethyl pentane B) 2-ethyl, 4-methyl hexne (E) 2,4-dimethyl hexane (4ethyl, 2-methylI hexane 2. Which of the following compound has no chiral center 3. The bond angles in methane and ethyne are 4. The most unstable 1,4-dimethyl cyclohexane conformation (D) 3-ethyl,5-methyl hexane (A) 2-butanol (B) 2-chloro butane (C) 1,2-dichloro butane (D) 1,3-dichloro butane (E) 1.,4-dichloro butane (A) 109.5° and 120 (B)...
Make3 a model of cyclopentane. Does this molecule seem to have any ring strain in the sense that the three and four-membred rings do? The molecule is not completely strin-free because there is some eclipsing. Identify the eclipsed atoms or groups when the molecule is planar. In fact the molecule is not planar, but is puckered in either of two ways; (i) One C-atom is abover or below the plane defined by the other four coplanar C-atoms defining an envelope...
Page C 1) What functional group is NOT present in the structure below? a. alkyne b. alkene c. ether d. aldehyde e. amine 2) What is the correct IUPAC name for the molecule below? a. 3-tert-butyl-4-methylhexane b. 3-tert-butyl-4-methylpentane c. neononane d. 3.ethyl-2,2,4-trimethylpentane e. 1-ethyl-1-isopropyl-tert-butane 3) Which molecule will have the highest boiling point? tinio 4) How many different constitutional isomers may be formed upon monochlorination with Cly/light of the alkane shown below? 5) How many secondary hydrogen atoms are present...
4. Draw the most stable and most unstable Newman Projection for the following molecules using the rotation around the C3-C4 bond (use the IUPAC rules to number the chain) 5. Draw the two chair conformations for each of the following cyclohexane derivatives and then choose the conformation that is the most stable. Br BA 3 3 3 $ 2879 So ya 6. For the following compounds, identify the chiral carbons with an asterisk (*) and for those that are not...
1. In the structure of the antibiotic Aztreonam illustrated
below, how many nitrogen atoms have a sp2 hybridization
state?
2. What is the number of oxygen atoms on which the negative
charge will resonate by following relevant resonance structures?
(0,1,2,3,4 or 5)
3. Identify the stereochemistry of each of these double bonds
marked 1 and 2 in the structure below ((E) or (Z))
4. What is the absolute configuration of the following molecule?
(R/S)
5. Determine the relationship between these...
6. Build the cyclobutane ring and study the angle strain and torsional strain. Draw the structures to explain these factors. 7. The conformation of cyclobutane is slightly folded. Folding gives partial relief from the eclipsing of bonds, as shown in the Newman projection. Compare this actual structure with the hypothetical planar structure. Draw the relevant structures. 8. trans-1,2-Dimethylcyclobutane is more stable than cis-1,2-dimethylcyclobutane, but cis-1,3- dimethylcyclobutane is more stable than trans-1,3-dimethylcyclobutane. Use the molecular models to find the reasons for...
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