Concept explainers
(a)
Interpretation:
The stronger acid has to be determined.
Concept Introduction:
Base and its conjugate Acid: A Base is a species that can gain a proton. When a base gains a proton
Electron delocalization stabilizes base: If a base has delocalized electrons, then the negative charge that results when the base’s conjugate acid loses a proton will belong to one atom. If a base has delocalized electrons, then the negative charge that results when the base’s conjugate acid loses a proton will be shared by two or more atoms. A base with delocalized electron is more stable than a similar base with localized electrons.
Relative Acid strength: Replacing hydrogen with an electronegative substituent that pulls bonding electrons toward itself increases the strength of the acid.
The more electronegative the substituent that replaces hydrogen, the stronger the acid becomes.
Example:
(b)
Interpretation:
The stronger acid has to be determined.
Concept Introduction:
Base and its conjugate Acid: A Base is a species that can gain a proton. When a base gains a proton
Electron delocalization stabilizes base: If a base has delocalized electrons, then the negative charge that results when the base’s conjugate acid loses a proton will belong to one atom. If a base has delocalized electrons, then the negative charge that results when the base’s conjugate acid loses a proton will be shared by two or more atoms. A base with delocalized electron is more stable than a similar base with localized electrons.
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EP ESSENTIAL ORG.CHEM.-MOD.MASTERING
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- Which of the following is the strongest acid? O a. acetic acid O b. dichlorobenzoic acid O c. dihydroxybenzoic acid Od. dichloro acetic acid e. chlorobenzoic acidarrow_forward6.58 Rank the following species from weakest base to strongest base. B Но. E. Garrow_forwardRank the attached ions in order of increasing basicity.arrow_forward
- Which of the following is the strongest acid (acidic hydrogen highlighted)? H. H. A C Compound B Compound A Compound D Compound Carrow_forward&:&::&&:&;;&arrow_forwardThe boiling points of a range of organic compounds (A-D) of similar Mol. Wt.s are given below. OH OMe A в D b.p. 46-50°C Explain why the boiling point of C is higher than that of D. Explain why the boiling point of B is higher than that of A. Explain why the boiling point of C is higher than that of A. Which of these four compounds is most acidic? What makes it so acidic? b.p. 78'C b.p. 141'C b.p. 79'C (i) (ii) (iii) (iv)arrow_forward
- a.) What is the conjugate acid of A?b.) What is the conjugate base of A ?arrow_forwardA. Compound II is more basic than compound I. B. Compound I is more basic than compound II. C. Cannot be compared D. Both compounds have the same basicityarrow_forwardDraw the structure of a constitutional isomer of compound B that fits each description. a. an isomer that is at least 105 times more acidic than B b. an isomer that is at least 10 times less acidic than B c. an isomer that is comparable in acidity to B HO. Barrow_forward
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning