. Write the conjugate base for each of the following acids:

a. H₂S

b. HS-

c. NH₃

d. H₂SO₃

(a)

Interpretation:

The conjugate base for the acid should be determined.

Concept Introduction:

Acid is defined as a substance that gives hydrogen ion/s in the aqueous solution. Similarly, base is a substance that gives hydroxide ions in the aqueous solution. When a acid gives its hydrogen ion, conjugate base is formed and when a base gives its hydroxide ion, conjugate acid is formed.

For example, if HA is an acid, the reaction for formation of conjugate base will be as follows:

HA→H++A−

Here, A− is conjugate base.

Similarly, if BOH is a base, the reaction for formation of conjugate acid will be as follows:

BOH→B++OH−

Here, B+ is conjugate acid.

Thus, a conjugate base can accept hydrogen ion and conjugate base can accept hydroxide ion.

The given acid is H2S. Since, it is an acid thus; it can donate hydrogen ion and conjugate base of the given acid can be formed as follows:

H2S&#

(b)

Interpretation:

The conjugate base for the acid should be determined.

Concept Introduction:

Acid is defined as a substance that gives hydrogen ion/s in the aqueous solution. Similarly, base is a substance that gives hydroxide ions in the aqueous solution. When a acid gives its hydrogen ion, conjugate base is formed and when a base gives its hydroxide ion, conjugate acid is formed.

For example, if HA is an acid, the reaction for formation of conjugate base will be as follows:

HA→H++A−

Here, A− is conjugate base.

Similarly, if BOH is a base, the reaction for formation of conjugate acid will be as follows:

BOH→B++OH−

Here, B+ is conjugate acid.

Thus, a conjugate base can accept hydrogen ion and conjugate base can accept hydroxide ion.

(c)

Interpretation:

The conjugate base for the acid should be determined.

Concept Introduction:

Acid is defined as a substance that gives hydrogen ion/s in the aqueous solution. Similarly, base is a substance that gives hydroxide ions in the aqueous solution. When a acid gives its hydrogen ion, conjugate base is formed and when a base gives its hydroxide ion, conjugate acid is formed.

For example, if HA is an acid, the reaction for formation of conjugate base will be as follows:

HA→H++A−

Here, A− is conjugate base.

Similarly, if BOH is a base, the reaction for formation of conjugate acid will be as follows:

BOH→B++OH−

Here, B+ is conjugate acid.

Thus, a conjugate base can accept hydrogen ion and conjugate base can accept hydroxide ion.

(d)

Interpretation:

The conjugate base for the acid should be determined.

Concept Introduction:

Acid is defined as a substance that gives hydrogen ion/s in the aqueous solution. Similarly, base is a substance that gives hydroxide ions in the aqueous solution. When a acid gives its hydrogen ion, conjugate base is formed and when a base gives its hydroxide ion, conjugate acid is formed.

For example, if HA is an acid, the reaction for formation of conjugate base will be as follows:

HA→H++A−

Here, A− is conjugate base.

Similarly, if BOH is a base, the reaction for formation of conjugate acid will be as follows:

BOH→B++OH−

Here, B+ is conjugate acid.

Thus, a conjugate base can accept hydrogen ion and conjugate base can accept hydroxide ion.