Q: How is nucleophilicity (nucleophile strength) related to basicity?
A: Given: Nucleophilicity related to basicity.
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A: Deprotonation is removal of proton (H+) from acid. At half equivalence point, pH = pKa. The half…
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A: Acids are the species which gives H+ while base are the species which accepts H+.
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A: Answer is 2> 5> 1>3>4
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A: When a base abstracts a proton from the alpha carbon atom of aldehydes or ketones, a carbanion is…
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Q: ank the following acid derivative classes in order of increasing reactivity with the same…
A: 8) the increasing order of reactivity with the same nucleophile is:
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Q: The pKa of our product is ~ 2-3 units lower than the pKa of phenol. Draw all possible resonance…
A: Solution- All possible resonance structures of the conjugate base of the product given below-
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Q: Treatment of indene with NaNH2 forms its conjugate base in a Brønsted–Lowry acid–base reaction. Draw…
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Q: mention the conjugate bases and use structures to explain the following: a. why is the alpha proton…
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Q: 3. Which one of the following answers represents the order of increasing bacisity for compounds the…
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Q: Explain why m-nitroaniline is a stronger base than p-nitroaniline.
A: m-nitroaniline is a stronger base than p-nitroaniline
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Q: 2 Describe the trends in the acidityand physical properties of carboxylicacids
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A: Intrdouction: We have to draw resonating structures of conjugate base .
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A: Conjugate acid base pair - Acids donate proton and base accepts proton. Acid and base which differ…
Q: Bulky, nonnucleophilic bases favor elimination over substitution. Define this ?
A: The replacement of a good leaving group by a nucleophile is called substitution reaction. The…
Q: The preceding equation for the protonation of acetamide shows a hypothetical product that is not…
A: The pKa represents the strength of an acid, which is calculated using acid dissociation constant…
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A: Acid: It is the ability of a compound to donate protons to other species. The structure of…
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Q: Treatment of indene with NaNH2 forms its conjugate base in a Brønsted– Lowry acid–base reaction.…
A:
Q: Why is alkoxide (RO-) a stronger base than Chloride? Why are alcohols typically poor electrophiles?
A: 1. alkoxide ions are better proton acceptors as compared to hydroxide ion which makes them stronger…
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Q: base - 6. What is the major product? a. b. С. d. e. not a.-d.
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Q: (A) B) P3-or S3--
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Q: rom each pair, select the stronger base. Then draw the conjugate acid of the strong base below.…
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Q: Hello, can you list the basicities from large to small with reasons? a) Aniline b) Pyridine c)…
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- The pKa of our product is ~ 2-3 units lower than the pKa of phenol. Draw all possible resonance structures of the conjugate base of the product, and use these to explain why our product is so much more acidic than phenol.What is the conjugate acid of acetamide and its pka value?The following pKa values have been measured. Explain why a hydroxyl group in the para position decreases the acidity while a hydroxyl group in the meta position increases the acidity.
- what is the structure of o-methylphenoxide anion and what is its pKa?Acetic acid can also react as a very weak base (pKb = 20). Two different sites on acetic acid might become protonated to give the conjugate acid. Draw both of these possible conjugate acids, and explain (resonance) why the correct one is more stable. Calculate the pKa of this conjugate acid.Rank the following compounds in order of increasing acidity (1 = least acidic, 3 = most acidic) and in the space provided use resonance (of the conjugate base) to explain why the compound you have labelled “3” is the most acidic.
- Treatment of indene with NaNH2 forms its conjugate base in a Brønsted– Lowry acid–base reaction. Draw all reasonable resonance structures for indene's conjugate base, and explain why the pKa of indene is lower than the pKa of most hydrocarbons.Treatment of indene with NaNH2 forms its conjugate base in a Brønsted–Lowry acid–base reaction. Draw all reasonable resonance structures for indene’s conjugate base, and explain why the pKa of indene is lower than the pKa of most hydrocarbons.mention the conjugate bases and use structures to explain the following: a. why is the alpha proton of a ketone (pKa ~ 16) is more acidic than the protons in CH3CH3? b. why is the alpha proton of a ketone (pKa ~ 16) is more acidic than the protons in a ester (pKa ~ 35)? c. why are the hydrogens in a C-H bond like CH3CH3 difficult to remove?
- The preceding equation for the protonation of acetamide shows a hypothetical product that is not actually formed. When acetamide is protonated by a strong enough acid, it does not protonate on nitrogen, but at a different basic site. Draw the structure of the actual conjugate acid of acetamide, and explain (resonance) why protonation occurs where it does rather than on nitrogen. Calculate the pKa of this conjugate acid.4-Cyanophenol has a pKa = 8.0, whereas phenol has a pKa= 10.0. Resonance form that best illustrates why 4-cyanophenol is more acidic isThe hydrolysis of the ester shown here is catalyzed by morpholine. Explain how morpholine catalyzes the reaction. (Hint: The pKa of the conjugateacid of morpholine is 9.3, so morpholine is too weak a base to function as a base catalyst.)