Homework Answers
here the name of the effect
which is responsible for this acidity is -I effect, which pull the
electron density towards itself to release H+ ion and shows
acidity.
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3. Use no more than 3 sentences to explain the trend in decreasing pKa values for...
2.2 Nitromethane (CH3NO2, pka = 10) is more acidic than most organic acids. Explain why nitromethane...
2.2 Nitromethane (CH3NO2, pka = 10) is more acidic than most organic acids. Explain why nitromethane is so much more acidic than ethane (pka = 60). Write the chemical equations to illustrate the acidity of the compounds. Include valid Lewis dot structures (including formal charge) and resonance structures, if relevant. (6)
Paragraph 6. Rank the following acids in decreasing (strongest to weakest) order of acidity. Explain your...
Paragraph 6. Rank the following acids in decreasing (strongest to weakest) order of acidity. Explain your choice. сон 7. Predict the product for the following reaction 1.0 2H,O, NaOHHO 3. H,0 8. Predict the product for the following reaction. ОН OH excess K.COH SOUHO 9. Provide the reagents necessary to carry out the following conversion.
4. The pKa values of the ortho, para, and meta substituted benzoic acids are shown below....
4. The pKa values of the ortho, para, and meta substituted benzoic acids are shown below. Use words and drawings to explain these relative acidities. (7 points) HO. 0 HO0 HOO NH2 NH2 NH2 pka = 4.89 pka = 4.95 pka = 4.73
3) Explain why 2,4-heptanedione is more acidic (pKa 9) than 2,6-heptanedione (pKa 20)
3) Explain why 2,4-heptanedione is more acidic (pKa 9) than 2,6-heptanedione (pKa 20)
1. What is a structure based explanation for why acetamide is more stable than acetone. I'm...
1. What is a structure based explanation for why acetamide is
more stable than acetone. I'm pretty sure it has to do with
resonance.
2. also for question F im fairly sure it has to do with
resonance again but I not sure exactly why. could someone answer
and explain?
F. Draw the conjugate base for each compound below and draw the appropriate structures to explain the difference in N-H acidity pKa~9.5 pKa 16 N-H N-H
A) Please explain why the reaction below will not work. We will take points off if you use more than 2 sentences in your explanation!
A) Please explain why the reaction below will not work. We will take points off if you use more than 2 sentences in your explanation! B) Please propose a synthesis of the above product amine that will work.
Select the reagents you would use to accomplish the syntheses shown below in no more than...
Select the reagents you would use to accomplish the syntheses shown below in no more than the number of steps specified. List the letters of the reagents in the order that they are used; example: fa. Reagents Available a. HBr b. PBr3 C. (CH3CH2CH2CH2)2Culi f. CH31 g. Hg(OAC)2, H2O, THF; then NaBH4 h. Cl2, light d. (CH3)2Culi I. KOH j. NBS (N-bromosuccinimide) e. BH3, THF; then H202, OH - он CH3 Use 2 steps: V - M Use 3 steps:
Question 3 (a) Arange the following compounds in order of decreasing reactivity with nucleophiles (ie. most...
Question 3 (a) Arange the following compounds in order of decreasing reactivity with nucleophiles (ie. most reactive compound first). Explain your reasoning. (6 marks) C Me Me OMe OMe F C NMez Me Me Answer TWO parts from (i)-(iii) (7 marks each). (b) Give mechanisms for the following reactions and use them to explain the different (i) reaction outcomes. LIAIH он Me OMe Me LIAIH NMez Me NMeg Me (i) Give mechanisms for the following reactions and use them to...
Please help, I need 3 to 4 sentences each for questions 1-4. When answering, please use...
Please help, I need 3 to 4 sentences each for questions 1-4.
When answering, please use a scientific writing style
as it states in the discussion section.
Chemical reaction equations Lab 1. KHC8H404(aq) + NaOH(aq) + H20 (1) + NaKC8H404(aq) Lab 2. HCH3CO2(aq) + NaOH(aq) → H20(1) + NaCH3CO2 (aq) (Eq 1) (Eq 2) Results Brand of vinegar analyzed in Lab 2: Great Value Amount of acetic acid in the vinegar claimed on the label: 5 % acidity Name of...
12. Identify which ammonium ion has the lower pka. Use aromaticity concepts to explain your answers.(3pts)...
12. Identify which ammonium ion has the lower pka. Use aromaticity concepts to explain your answers.(3pts) 13. What is the Hückel number of pi electrons for the molecule shown below? How many pi electron pairs does it have? Would you expect this molecule to be aromatic, antiaromatic or non aromatic? Explain. (3pts) 14. The rate of solvolysis of iodide 1 is 100 times faster than the rate of solvolysis of iodide 3. What explanation (with structures) can you provide for...
2.2 Nitromethane (CH3NO2, pka = 10) is more acidic than most organic acids. Explain why nitromethane is so much more acidic than ethane (pka = 60). Write the chemical equations to illustrate the acidity of the compounds. Include valid Lewis dot structures (including formal charge) and resonance structures, if relevant. (6)
Paragraph 6. Rank the following acids in decreasing (strongest to weakest) order of acidity. Explain your choice. сон 7. Predict the product for the following reaction 1.0 2H,O, NaOHHO 3. H,0 8. Predict the product for the following reaction. ОН OH excess K.COH SOUHO 9. Provide the reagents necessary to carry out the following conversion.
4. The pKa values of the ortho, para, and meta substituted benzoic acids are shown below. Use words and drawings to explain these relative acidities. (7 points) HO. 0 HO0 HOO NH2 NH2 NH2 pka = 4.89 pka = 4.95 pka = 4.73
3) Explain why 2,4-heptanedione is more acidic (pKa 9) than 2,6-heptanedione (pKa 20)
1. What is a structure based explanation for why acetamide is
more stable than acetone. I'm pretty sure it has to do with
resonance.
2. also for question F im fairly sure it has to do with
resonance again but I not sure exactly why. could someone answer
and explain?
F. Draw the conjugate base for each compound below and draw the appropriate structures to explain the difference in N-H acidity pKa~9.5 pKa 16 N-H N-H
Select the reagents you would use to accomplish the syntheses shown below in no more than the number of steps specified. List the letters of the reagents in the order that they are used; example: fa. Reagents Available a. HBr b. PBr3 C. (CH3CH2CH2CH2)2Culi f. CH31 g. Hg(OAC)2, H2O, THF; then NaBH4 h. Cl2, light d. (CH3)2Culi I. KOH j. NBS (N-bromosuccinimide) e. BH3, THF; then H202, OH - он CH3 Use 2 steps: V - M Use 3 steps:
Question 3 (a) Arange the following compounds in order of decreasing reactivity with nucleophiles (ie. most reactive compound first). Explain your reasoning. (6 marks) C Me Me OMe OMe F C NMez Me Me Answer TWO parts from (i)-(iii) (7 marks each). (b) Give mechanisms for the following reactions and use them to explain the different (i) reaction outcomes. LIAIH он Me OMe Me LIAIH NMez Me NMeg Me (i) Give mechanisms for the following reactions and use them to...
Please help, I need 3 to 4 sentences each for questions 1-4.
When answering, please use a scientific writing style
as it states in the discussion section.
Chemical reaction equations Lab 1. KHC8H404(aq) + NaOH(aq) + H20 (1) + NaKC8H404(aq) Lab 2. HCH3CO2(aq) + NaOH(aq) → H20(1) + NaCH3CO2 (aq) (Eq 1) (Eq 2) Results Brand of vinegar analyzed in Lab 2: Great Value Amount of acetic acid in the vinegar claimed on the label: 5 % acidity Name of...
12. Identify which ammonium ion has the lower pka. Use aromaticity concepts to explain your answers.(3pts) 13. What is the Hückel number of pi electrons for the molecule shown below? How many pi electron pairs does it have? Would you expect this molecule to be aromatic, antiaromatic or non aromatic? Explain. (3pts) 14. The rate of solvolysis of iodide 1 is 100 times faster than the rate of solvolysis of iodide 3. What explanation (with structures) can you provide for...
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