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CHEM 3320 Practice Test 3 1 a Draw a diagram showing how the electrons would be...
please help in all sections asap!! In a Clemmensen reduction, an aryl ketone is reduced to...
please help in all sections asap!!
In a Clemmensen reduction, an aryl ketone is reduced to an Oaryl aldehyde Caryl alkane aryl carboxylic acid aryl ester aryi anhydride Identify the electrophile for the Friedel-Crafts acylation of benzene. O aluminum tetrachloride anion aluminum chloride acylium ion carbocation carbanion Which of the following criteria is necessary for a nucleophilic aromatic substitution reaction? © A. The ring must contain a very strong electron withdrawing group. B. The ring must contain a leaving group....
THESE ARE THE 6 reagents 1) 1-naphthol 2) 4-bromophenol 3)phenol 4) anisol 5) acetanilide 6) diphenyl...
THESE ARE THE 6 reagents
1) 1-naphthol
2) 4-bromophenol
3)phenol
4) anisol
5) acetanilide
6) diphenyl ether
rates of electrophilic aromatic substitution lab using bromine. 1. (3 pts.) Draw the structures of all six reactant arenes that will be used in this lab 2. (6 pts.) Beneath each structure you have a. If the substituent is ring b. If the electrophile will be drawn in question 1, note the following: activating or deactivating directed to an ortho, meta, and/or para...
1.The best way to describe the "arrow" showing the mechanism of EAS is: A.it goes from...
1.The best way to describe the "arrow" showing the mechanism of EAS is: A.it goes from the attacking atom (electrophile) to the carbon being attacked. B.it goes from the attacking atom to the new bond being formed. C.it goes from the electron pair in the pi-bond on the ring to the new sigma bond being formed. D.it involves a half-head arrow from the attacking species and a half-head arrow from the pibond to the new sigma bond to be formed....
Question: How is it possible for H2OCl+ to be the active oxidizing agent? Why wouldnt the answer be: NaOCl + CH3COOH ---> HOCL + CH3COONa? How is it possible for HOCL to accept another electron?...
Question: How is it possible for H2OCl+ to be the active
oxidizing agent? Why wouldnt the answer be:
NaOCl + CH3COOH ---> HOCL + CH3COONa?
How is it possible for HOCL to accept another electron?
THE CORRECT ANSWER IS LABLED BELOW:
Meta is the least stae intermediate here, but then ortho
becomes least stable products. Why is this? Products also are
given.
Products:
он 5.25 % NaOCl Acetone, CH&COOH 9-fluorenone 9-fluorenol c) Provide the balanced chemical equation that accounts for...
250 ChemActivity 29 Electrophilic Aromatic Substitution no ChemActivity 29 Part A: Electrophilic Aromatic Substitution (What products...
250 ChemActivity 29 Electrophilic Aromatic Substitution no ChemActivity 29 Part A: Electrophilic Aromatic Substitution (What products are formed when a strong electrophile is added to benzene?) Model 1: (review) Electrophilic Addition of HCI Rani o g cyclohexene carbocation intermediate Run 2 U X benzene This product carbocation intermediate DOES NOT Critical Thinking Questions 1 For Rxn I (above) draw curved arrows showing the mechanism of electrophilic addition of HCl. Include an appropriate carbocation intermediate in the box above. Figure 1:...
1. Draw the (major) organic products of the following reactions: HNO3 H2SO4 HN (CH3)3CBr AlBr3 FeBr3...
1. Draw the (major) organic products of the following reactions: HNO3 H2SO4 HN (CH3)3CBr AlBr3 FeBr3 Br Sort the following molecules by their reactivity toward electrophilic aromatic substitution (1-most reactive, 4 2. least reactive): NH2 so,H Place either the letter A or C below the following compounds to indicate whether each of them are achiral (A) or chiral (C) 3. но Cl Determine the configuration (R or S) for each stereocenter in the following compounds: 4. Cl Cl NH2 но...
all three questions Application Questions 1. Draw the mechanism for the sulfonation of benzene. Use HSO...
all three questions
Application Questions 1. Draw the mechanism for the sulfonation of benzene. Use HSO as the electrophile. Draw the all the resonance structures of the stabilized cation intermediate 2. Draw the major product formed when each of the following compounds is treated with Cly/AICI, Assume chlorination only occurs in one position on the ring rather than multiple positions. COM COCX ooo 3. Predict whether toluene or chlorobenzene would undergo electrophilic aromatic substitution more quickly when treated with C1z/AICI....
1. Please draw and name the three monomer units (6 pts) for lignin and label the...
1. Please draw and name the three monomer units (6 pts) for lignin and label the carbon at the aromatic rings (3 pts) and on the propane unit (1.5 pts), also please indicate the para, meta, and ortho position on the unit (2.5 pts). If one wants to add lignin into phenol-formaldehyde resin, which monomer unit would benefit the most (2 pts)? (Total 15 pts)
4. An energy diagram for electrophilic aromatic substitution of benzene with Br2 with FeBr3 as catalyst...
4. An energy diagram for electrophilic aromatic substitution of benzene with Br2 with FeBr3 as catalyst below. The rate-limiting step is formation of the sigma complex (Step 1). Generally, any factor that stabilizes the sigma complex also stabilizes the transition-state leading to that complex. This effect leads to a lower transition-state energy and a faster reaction. rate-limiting transition state reactants + Br + FeBrz Η Br FeBr + O energy intermediate products Br + HBr + FeBr 3 -45 kJ/mol...
3 Draw eAer reaction were complete. Indicate the nucleophile and electrophile in the first step. Hint-there...
3 Draw eAer reaction were complete. Indicate the nucleophile and electrophile in the first step. Hint-there should be three steps, with two arrows in each step the mechanism for the reaction of the alcohol and the anhydride, assuming it occurred after the 6 pts) if 4) Draw the most favorable conformation of the diene starting material. What implication does this have for the energy of the reaction? (2 pts) 5) Cyclopentene could be used in this reaction in place of...
please help in all sections asap!!
In a Clemmensen reduction, an aryl ketone is reduced to an Oaryl aldehyde Caryl alkane aryl carboxylic acid aryl ester aryi anhydride Identify the electrophile for the Friedel-Crafts acylation of benzene. O aluminum tetrachloride anion aluminum chloride acylium ion carbocation carbanion Which of the following criteria is necessary for a nucleophilic aromatic substitution reaction? © A. The ring must contain a very strong electron withdrawing group. B. The ring must contain a leaving group....
THESE ARE THE 6 reagents
1) 1-naphthol
2) 4-bromophenol
3)phenol
4) anisol
5) acetanilide
6) diphenyl ether
rates of electrophilic aromatic substitution lab using bromine. 1. (3 pts.) Draw the structures of all six reactant arenes that will be used in this lab 2. (6 pts.) Beneath each structure you have a. If the substituent is ring b. If the electrophile will be drawn in question 1, note the following: activating or deactivating directed to an ortho, meta, and/or para...
Question: How is it possible for H2OCl+ to be the active
oxidizing agent? Why wouldnt the answer be:
NaOCl + CH3COOH ---> HOCL + CH3COONa?
How is it possible for HOCL to accept another electron?
THE CORRECT ANSWER IS LABLED BELOW:
Meta is the least stae intermediate here, but then ortho
becomes least stable products. Why is this? Products also are
given.
Products:
он 5.25 % NaOCl Acetone, CH&COOH 9-fluorenone 9-fluorenol c) Provide the balanced chemical equation that accounts for...
250 ChemActivity 29 Electrophilic Aromatic Substitution no ChemActivity 29 Part A: Electrophilic Aromatic Substitution (What products are formed when a strong electrophile is added to benzene?) Model 1: (review) Electrophilic Addition of HCI Rani o g cyclohexene carbocation intermediate Run 2 U X benzene This product carbocation intermediate DOES NOT Critical Thinking Questions 1 For Rxn I (above) draw curved arrows showing the mechanism of electrophilic addition of HCl. Include an appropriate carbocation intermediate in the box above. Figure 1:...
1. Draw the (major) organic products of the following reactions: HNO3 H2SO4 HN (CH3)3CBr AlBr3 FeBr3 Br Sort the following molecules by their reactivity toward electrophilic aromatic substitution (1-most reactive, 4 2. least reactive): NH2 so,H Place either the letter A or C below the following compounds to indicate whether each of them are achiral (A) or chiral (C) 3. но Cl Determine the configuration (R or S) for each stereocenter in the following compounds: 4. Cl Cl NH2 но...
all three questions
Application Questions 1. Draw the mechanism for the sulfonation of benzene. Use HSO as the electrophile. Draw the all the resonance structures of the stabilized cation intermediate 2. Draw the major product formed when each of the following compounds is treated with Cly/AICI, Assume chlorination only occurs in one position on the ring rather than multiple positions. COM COCX ooo 3. Predict whether toluene or chlorobenzene would undergo electrophilic aromatic substitution more quickly when treated with C1z/AICI....
1. Please draw and name the three monomer units (6 pts) for lignin and label the carbon at the aromatic rings (3 pts) and on the propane unit (1.5 pts), also please indicate the para, meta, and ortho position on the unit (2.5 pts). If one wants to add lignin into phenol-formaldehyde resin, which monomer unit would benefit the most (2 pts)? (Total 15 pts)
4. An energy diagram for electrophilic aromatic substitution of benzene with Br2 with FeBr3 as catalyst below. The rate-limiting step is formation of the sigma complex (Step 1). Generally, any factor that stabilizes the sigma complex also stabilizes the transition-state leading to that complex. This effect leads to a lower transition-state energy and a faster reaction. rate-limiting transition state reactants + Br + FeBrz Η Br FeBr + O energy intermediate products Br + HBr + FeBr 3 -45 kJ/mol...
3 Draw eAer reaction were complete. Indicate the nucleophile and electrophile in the first step. Hint-there should be three steps, with two arrows in each step the mechanism for the reaction of the alcohol and the anhydride, assuming it occurred after the 6 pts) if 4) Draw the most favorable conformation of the diene starting material. What implication does this have for the energy of the reaction? (2 pts) 5) Cyclopentene could be used in this reaction in place of...
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