Calculate the pH of a 0.010 M solution of each amino acid in the form drawn here. (a)

Chapter 9, Problem 9-D

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QUESTION:

Calculate the pH of a 0.010 M solution of each amino acid in the form drawn here.

(a)

(b)

(c)

Questions & Answers

QUESTION:

Calculate the pH of a 0.010 M solution of each amino acid in the form drawn here.

(a)

(b)

(c)

ANSWER:

Step 1 of 4

From the given,

pH of the each solution = 0.010M

The three forms of Glutamine is as follows.

Let’s calculate the concentration of \(H^{+}\) ;

The concentration of \(H^{+}\) ion is calculated by the following equation;

\(\left[H^{+}\right]=\sqrt{\frac{K_{1} K_{2} F+K_{1} K_{w}}{K_{1}+F}} \ldots \ldots \ldots \ldots \ldots \ldots . .(1)\)

Here,

\(K_{1}\) = First ionization constant

\(K_{2}\) = Second ionization constant.

\(K_{w}\) = Dissociation constant of water.

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