Chapter 17, Problem 31P

(a)

Interpretation Introduction

Interpretation:

The pH at which glycine exists at the given form has to be calculated.

Concept introduction:

The isoelectric point $\text{(pI)}$ is the $\text{pH}$ at which the amount of positive charge and negative charge on an amino acid becomes balanced.

The value of $pI$ is depends upon the $p{K}_a$ value of protonated amino group and $p{K}_a$ value of carboxyl group of an amino acid.

Protons are released when the $\text{pH}$ becomes $p{K}_a$ of species.

(b)

Interpretation Introduction

Interpretation:

The pH at which glycine exists at the given form has to be calculated.

Concept introduction:

The isoelectric point $\text{(pI)}$ is the $\text{pH}$ at which the amount of positive charge and negative charge on an amino acid becomes balanced.

The value of $pI$ is depends upon the $p{K}_a$ value of protonated amino group and $p{K}_a$ value of carboxyl group of an amino acid.

Protons are released when the $\text{pH}$ becomes $p{K}_a$ of species.

(c)

Interpretation Introduction

Interpretation:

The $\text{pH}$ at which glycine exists at the given form has to be calculated.

Concept introduction:

The isoelectric point $\text{(pI)}$ is the $\text{pH}$ at which the amount of positive charge and negative charge on an amino acid becomes balanced.

The value of $pI$ is depends upon the $p{K}_a$ value of protonated amino group and $p{K}_a$ value of carboxyl group of an amino acid.

Protons are released when the $\text{pH}$ becomes $p{K}_a$ of species.