Chapter 11, Problem 11.19P

(a)

Interpretation Introduction

Interpretation:

Values of $\text{p}{K}_{\text{a}}$ for ${\text{BH}}_2^{2+}$ has to be predicted and diagram for others species with respective $\text{pH}$ has to be drawn.

Concept Introduction:

Predominant form of amino acid can be identified from relative values of $\text{p}{K}_{\text{a}}$ for the distinct kinds of proton for each amino acid.

(b)

Interpretation Introduction

Interpretation:

Value of $\text{pH}$ when $\left[\text{B}\right]=\left[{\text{BH}}^{+}\right]$ has to be identified.

Concept Introduction:

Refer to part (a).

(c)

Interpretation Introduction

Interpretation:

Value of $\text{pH}$ when $\left[{\text{BH}}_2^{2+}\right]=\left[{\text{BH}}^{+}\right]$ has to be identified.

Concept Introduction:

Refer to part (a).

(d)

Interpretation Introduction

Interpretation:

Principal and second most abundant species have to be identified.

Concept Introduction:

Refer to part (a).

(e)

Interpretation Introduction

Interpretation:

Value of quotient $\left[\text{B}\right]$/$\left[{\text{BH}}^{+}\right]$ at $\text{pH}$12 has to be calculated.

Concept Introduction:

Refer to part (a).

(f)

Interpretation Introduction

Interpretation:

Value of quotient $\left[{\text{BH}}_2^{2+}\right]$/$\left[{\text{BH}}^{+}\right]$ at $\text{pH}$ 2 has to be calculated.

Concept Introduction:

Refer to part (a).