1. 2,6-dichloroindophenol has a pKa value of 5.9 and is 10,000 times more acidic than phenol...
1. 2,6-dichloroindophenol has a pKa value of 5.9 and is 10,000 times more acidic than phenol (pKa = 10). Draw resonance structures for the conjugate base of 2,6-dichloroindophenol and use them to explain the differences in pKa values.
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1. 2,6-dichloroindophenol has a pKa value of 5.9 and is 10,000
times more acidic than phenol...
draw resonance structures for the conjugate base of 2,6dichloroibdophenol and use them to explain the differences in th...
draw resonance structures for the conjugate base of
2,6dichloroibdophenol and use them to explain the differences in
the pka values
a value of 5.9 and is 10.000 times more 2,6-dichloroindophenol (see in Part III) has a pka value of 5.9 and is 10000 acidic than phenol (pKa =10). Draw resonance structures for the conjugate base of 26 dichloroindophenol and use them to explain the differences in the pKa values.
1. 2. Write an equation that describes what happens when benzoic acid (a solid) dissolves in...
1. 2. Write an equation that describes what happens when benzoic acid (a solid) dissolves in water. Now write an equation that describes benzoic acid dissolving in diethyl ether (a liquid). (Hint: replace the (aq) phase symbol with (ether).) Write equations including pKa values that describes the following reactions: a. Acetic acid with aqueous NaOH. b. Ethyl amine with aqueous HCI. c. Phenol with aqueous NaOH. 2,6-dichloroindophenol (see in Part III) has a pKa value of 5.9 and is 10,000...
Acetonitrile (CH3CN) has a pK, of 25, making it more acidic than many other compounds having...
Acetonitrile (CH3CN) has a pK, of 25, making it more acidic than many other compounds having only C-H bonds. Draw structures for acetonitrile and its conjugate base using skeletal structures. Use resonance structures to account for the acidity of acetonitrile. draw structure ... Acetonitrile Acetonitrile's conjugate base: draw structure... draw structure ... (negative charge on ) (negative charge on N) The acidity of acetonitrile is accounted for by: O Acetonitrile's conjugate base is stabilized by resonance. O Acetonitrile's conjugate base...
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)
Explain why cyclopentadiene (pKa 16) is many orders of magnitude more acidic than cyclopentane (pKa >...
Explain why cyclopentadiene (pKa 16) is many orders of
magnitude more acidic than cyclopentane (pKa > 50). (Hint: Draw
the structural formula for the anion formed by removing one of the
protons on the −CH2− group, and then apply the Hückel criteria for
aromaticity.)
Explain why cyclopentadiene (PK, 16) is many orders of magnitude more acidic than cyclopentane (pka > 50). (Hint: Draw the structural formula for the anion formed by removing one of the protons on the -CH2- group,...
2-Aminophenol is fairly acidic having a pKa value of ~4.8. Which of the structures shown below...
2-Aminophenol is fairly acidic having a pKa value of ~4.8. Which
of the structures shown below (labeled I - IV) is not a
valid resonance form of the expected conjugate base.
2-Aminophenol is fairly acidic having a pka value of 4.8. Which of the structures shown below (labeled I - IV) is not a valid resonance form of the expected conjugate base.
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)
(b) Explain the following pKa values by drawing out resonance structures of the conjugate base for...
(b) Explain the following pKa values by drawing out resonance structures of the conjugate base for the following: (i) pKa 15.5 ethanol pKa 10 (ii) phenol pKa 7.2 (5 marks) (ii) p-nitrophenol
Which of the following statements best explains the pKa difference between cyclohexanol and phenol? How are...
Which of the following statements best explains the pKa
difference between cyclohexanol and phenol?
How are the following compounds related?
Which reagents are needed to convert 1-octyne to 2-octanone?
6. Which of the following statements best explains the pKa difference between cyclohexanol and phenol? a. cyclohexanol has a lower pka than phenol because spoxygens anions are more stable than sp2 oxygen anions. b. phenol has a higher pka than cyclohexanol because the conjugate base is resonance stabilized C. cyclohexanol has...
draw resonance structures for the conjugate base of
2,6dichloroibdophenol and use them to explain the differences in
the pka values
a value of 5.9 and is 10.000 times more 2,6-dichloroindophenol (see in Part III) has a pka value of 5.9 and is 10000 acidic than phenol (pKa =10). Draw resonance structures for the conjugate base of 26 dichloroindophenol and use them to explain the differences in the pKa values.
1. 2. Write an equation that describes what happens when benzoic acid (a solid) dissolves in water. Now write an equation that describes benzoic acid dissolving in diethyl ether (a liquid). (Hint: replace the (aq) phase symbol with (ether).) Write equations including pKa values that describes the following reactions: a. Acetic acid with aqueous NaOH. b. Ethyl amine with aqueous HCI. c. Phenol with aqueous NaOH. 2,6-dichloroindophenol (see in Part III) has a pKa value of 5.9 and is 10,000...
Acetonitrile (CH3CN) has a pK, of 25, making it more acidic than many other compounds having only C-H bonds. Draw structures for acetonitrile and its conjugate base using skeletal structures. Use resonance structures to account for the acidity of acetonitrile. draw structure ... Acetonitrile Acetonitrile's conjugate base: draw structure... draw structure ... (negative charge on ) (negative charge on N) The acidity of acetonitrile is accounted for by: O Acetonitrile's conjugate base is stabilized by resonance. O Acetonitrile's conjugate base...
3) Explain why 2,4-heptanedione is more acidic (pKa 9) than 2,6-heptanedione (pKa 20)
Explain why cyclopentadiene (pKa 16) is many orders of
magnitude more acidic than cyclopentane (pKa > 50). (Hint: Draw
the structural formula for the anion formed by removing one of the
protons on the −CH2− group, and then apply the Hückel criteria for
aromaticity.)
Explain why cyclopentadiene (PK, 16) is many orders of magnitude more acidic than cyclopentane (pka > 50). (Hint: Draw the structural formula for the anion formed by removing one of the protons on the -CH2- group,...
2-Aminophenol is fairly acidic having a pKa value of ~4.8. Which
of the structures shown below (labeled I - IV) is not a
valid resonance form of the expected conjugate base.
2-Aminophenol is fairly acidic having a pka value of 4.8. Which of the structures shown below (labeled I - IV) is not a valid resonance form of the expected conjugate base.
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)
(b) Explain the following pKa values by drawing out resonance structures of the conjugate base for the following: (i) pKa 15.5 ethanol pKa 10 (ii) phenol pKa 7.2 (5 marks) (ii) p-nitrophenol
Which of the following statements best explains the pKa
difference between cyclohexanol and phenol?
How are the following compounds related?
Which reagents are needed to convert 1-octyne to 2-octanone?
6. Which of the following statements best explains the pKa difference between cyclohexanol and phenol? a. cyclohexanol has a lower pka than phenol because spoxygens anions are more stable than sp2 oxygen anions. b. phenol has a higher pka than cyclohexanol because the conjugate base is resonance stabilized C. cyclohexanol has...
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