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.
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2-Aminophenol is fairly acidic having a pKa value of ~4.8. Which
of the structures shown below...
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.
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...
9.(4 points) Which choice correctly explains the pka values below? OH тон pka = 4.20 pka...
9.(4 points) Which choice correctly explains the pka values below? OH тон pka = 4.20 pka = 15.4 O Resonance stabilization of the conjugate base makes the first molecule more acidic OC=O makes the first molecule less acidic O A second nearby oxygen makes the first molecule less acidic O Bonding aryl vs benzyl makes the first molecule more acidic First molecule is sp2 while the second one is sp3 predicts the observed values
which of the following would be a correct definition for pKa -the inverse log (1/log value...
which of the following would be a correct definition for pKa -the inverse log (1/log value of the Ka -the pH of the acidic solution when the acidic form has been completely converted to its conjugate base form
Organic Chemistry 4. Below are two molecules, B and C. Explain the differences in pKa of...
Organic Chemistry
4. Below are two molecules, B and C. Explain the differences in pKa of the two molecules by drawing the conjugate base of molecule C and a resonance structure that would not be found in molecule B. Hint: Draw out the NO2 group. conjugate base of molecule C pKa- 29.5 molecule B NO2 pka= 8.6 molecule C 5. Below is the molecule Abilify, which is a top selling drug that is used to treat schizophrenia, bipolar disorder and...
s (c) NH2 Rank the molecules shown in Figure 6 from H) most acidic to least acidic (example:dcba . NH2 он Figure 6...
s (c) NH2 Rank the molecules shown in Figure 6 from H) most acidic to least acidic (example:dcba . NH2 он Figure 6 ) Which of the following is most stable carbocation? i) methyl i) primary i) secondary iv) tertiany v) Hiv are approximately equal in stability J) Which of the following is not a characteristic of most aromatic compounds like benzene? i) they are cyclic li) they are planar ii) they are resonance stabilized iv) the aikenes of the...
Estimate the pKa of protonated phenol and protonated aniline (shown below). State which of the molecules...
Estimate the pKa of protonated phenol and protonated aniline
(shown below). State which of the molecules is a stronger
acid.
Related to exercise 3: Relative Basicity of Oxygen and Nitrogen Atoms in 4-Aminophenol and Formamide 5) Estimate the pKa of protonated phenol and protonated aniline (shown below). State which of the molecules is a stronger acid.
Consider the reaction of the aldehyde below with a base (Removal of hydrogen to form carbonanion)....
Consider the reaction of the aldehyde below with a base (Removal of hydrogen to form carbonanion). 1. Draw the conjugate bases for each H removal and, II. Circle the base with an acceptable resonance form.la но Base PIPI III. Draw this resonance form. IV. Which of the two forms is of lower energy This proton removed is of the lowest energy! This is the most acidic proton.
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
1) Which is the least acidic hydrogen in the compound shown? 2) Which is the most...
1) Which is the least acidic hydrogen in the compound shown?
2) Which is the most acidic hydrogen in the compound shown?
1) Which is the least acidic hydrogen in the compound shown? IV I a) I b) II c)III d) IV e) v 2) Which is the most acidic hydrogen in the compound shown? IV a) l b) ll c) III d) IV e) V
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...
9.(4 points) Which choice correctly explains the pka values below? OH тон pka = 4.20 pka = 15.4 O Resonance stabilization of the conjugate base makes the first molecule more acidic OC=O makes the first molecule less acidic O A second nearby oxygen makes the first molecule less acidic O Bonding aryl vs benzyl makes the first molecule more acidic First molecule is sp2 while the second one is sp3 predicts the observed values
Organic Chemistry
4. Below are two molecules, B and C. Explain the differences in pKa of the two molecules by drawing the conjugate base of molecule C and a resonance structure that would not be found in molecule B. Hint: Draw out the NO2 group. conjugate base of molecule C pKa- 29.5 molecule B NO2 pka= 8.6 molecule C 5. Below is the molecule Abilify, which is a top selling drug that is used to treat schizophrenia, bipolar disorder and...
s (c) NH2 Rank the molecules shown in Figure 6 from H) most acidic to least acidic (example:dcba . NH2 он Figure 6 ) Which of the following is most stable carbocation? i) methyl i) primary i) secondary iv) tertiany v) Hiv are approximately equal in stability J) Which of the following is not a characteristic of most aromatic compounds like benzene? i) they are cyclic li) they are planar ii) they are resonance stabilized iv) the aikenes of the...
Estimate the pKa of protonated phenol and protonated aniline
(shown below). State which of the molecules is a stronger
acid.
Related to exercise 3: Relative Basicity of Oxygen and Nitrogen Atoms in 4-Aminophenol and Formamide 5) Estimate the pKa of protonated phenol and protonated aniline (shown below). State which of the molecules is a stronger acid.
Consider the reaction of the aldehyde below with a base (Removal of hydrogen to form carbonanion). 1. Draw the conjugate bases for each H removal and, II. Circle the base with an acceptable resonance form.la но Base PIPI III. Draw this resonance form. IV. Which of the two forms is of lower energy This proton removed is of the lowest energy! This is the most acidic proton.
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
1) Which is the least acidic hydrogen in the compound shown?
2) Which is the most acidic hydrogen in the compound shown?
1) Which is the least acidic hydrogen in the compound shown? IV I a) I b) II c)III d) IV e) v 2) Which is the most acidic hydrogen in the compound shown? IV a) l b) ll c) III d) IV e) V
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