The more basic atom in the compound (1) has to be predicted and the structure of conjugate acid of (1) has to be drawn. Concept Introduction: Using p K a values to compare Acidity: In general, acid-base reaction said to reach equilibrium; the position of equilibrium is described by the term K e q . When an acid-base reaction is carried out in aqueous solution, the new term arrives by the term K a . p K a = - l o g K a p K a Values are used as measure of acidity; a strong acid will have a low p K a and a weak acid will have a high p K a . Using p K a values to compare Basicity: p K a Values are also used to compare bases; by drawing the conjugate acid of each base and compare the p K a values and identify the stronger base. Bronsted-Lowry Acids and bases: Acid is defined as proton transfer and base is defined as proton acceptor; Bronsted acid and base reaction involves the transfer of Proton. Conjugate acid: Protonated Base that gets results is called conjugate acid of the given base. In above reaction, the acid HA donates proton H + and becomes A − (is known as conjugate base). Conjugate Base: Deprotonated Acid that gets results is called conjugate Base of the given Acid. In above reaction, the base A − gets accepts proton H + and becomes HA (is known as conjugate acid).

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Chapter 3.3, Problem 8ATS

Interpretation Introduction

Interpretation:

The more basic atom in the compound (1) has to be predicted and the structure of conjugate acid of (1) has to be drawn.

Concept Introduction:

Using pKavalues to compare Acidity: In general, acid-base reaction said to reach equilibrium; the position of equilibrium is described by the term Keq. When an acid-base reaction is carried out in aqueous solution, the new term arrives by the term Ka.

pKa = - log Ka

pKa Values are used as measure of acidity; a strong acid will have a low pKa and a weak acid will have a high pKa.

Using pKavalues to compare Basicity: pKa Values are also used to compare bases; by drawing the conjugate acid of each base and compare the pKa values and identify the stronger base.

Bronsted-Lowry Acids and bases: Acid is defined as proton transfer and base is defined as proton acceptor; Bronsted acid and base reaction involves the transfer of Proton.

Conjugate acid: Protonated Base that gets results is called conjugate acid of the given base.

In above reaction, the acid HA donates proton H+ and becomes A−(is known as conjugate base).

Conjugate Base: Deprotonated Acid that gets results is called conjugate Base of the given Acid.

In above reaction, the base A− gets accepts proton H+ and becomes HA (is known as conjugate acid).

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