(a) Interpretation: The p K a value of the given indicated bond is to be estimated. Concept introduction: The equilibrium constant of an acid dissociation reaction depends on the strength of an acid involved in the reaction. The K a value is large for strong acids and small for weak acids. The stronger acid has a lower value of p K a and the weaker acid has a higher p K a value.
(a) Interpretation: The p K a value of the given indicated bond is to be estimated. Concept introduction: The equilibrium constant of an acid dissociation reaction depends on the strength of an acid involved in the reaction. The K a value is large for strong acids and small for weak acids. The stronger acid has a lower value of p K a and the weaker acid has a higher p K a value.
Solution Summary: The author calculates the equilibrium constant of an acid dissociation reaction based on the strength of the acid involved in the reaction.
Interpretation: The pKa value of the given indicated bond is to be estimated.
Concept introduction: The equilibrium constant of an acid dissociation reaction depends on the strength of an acid involved in the reaction. The Ka value is large for strong acids and small for weak acids. The stronger acid has a lower value of pKa and the weaker acid has a higher pKa value.
Interpretation Introduction
(b)
Interpretation: The pKa value of the given indicated bond is to be estimated.
Concept introduction: The equilibrium constant of an acid dissociation reaction depends on the strength of an acid involved in the reaction. The Ka value is large for strong acids and small for weak acids. The stronger acid has a lower value of pKa and the weaker acid has a higher pKa value.
Interpretation Introduction
(c)
Interpretation: The pKa value of the given indicated bond is to be estimated.
Concept introduction: The equilibrium constant of an acid dissociation reaction depends on the strength of an acid involved in the reaction. The Ka value is large for strong acids and small for weak acids. The stronger acid has a lower value of pKa and the weaker acid has a higher pKa value.
select the most appropriate reagent(s) to effect the change.
K2Cr2O7, H+
H2, Pd
1. Disiamylborane, 2. HO–, H2O, H2O2
NaOCl
H2SO4, HgSO4
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.
Chapter 2 Solutions
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