Solution Manual for Quantitative Chemical Analysis
Solution Manual for Quantitative Chemical Analysis
9th Edition
ISBN: 9781464175633
Author: Daniel Harris
Publisher: Palgrave Macmillan Higher Ed
Question
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Chapter 10, Problem 10.24P

(a)

Interpretation Introduction

Interpretation:

Which pH both [H2A]=[HA-] are equal has to be identified.

Concept introduction:

Henderson-Hassel Balch equation

pH=pK1+log[HA-][H2A]pH=pK2+log[A2-][HA-]

The pH of solution can be calculated as,

pH=-log[H+]γH-

With the above equation, the negative logarithm of activity of Hydrogen ion can be measured.

(b)

Interpretation Introduction

Interpretation:

Which pH both [HA-]=[A2-] are equal has to be identified.

Concept introduction:

Henderson-Hassel Balch equation

pH=pK1+log[HA-][H2A]pH=pK2+log[A2-][HA-]

The pH of solution can be calculated as,

pH=-log[H+]γH-

With the above equation, the negative logarithm of activity of Hydrogen ion can be measured.

(c)

Interpretation Introduction

Interpretation:

The principal species at pH=2.00:H2A,HA-,orA2- has to be explained.

(d)

Interpretation Introduction

Interpretation:

The principal species at pH=6.00 has to be explained.

(e)

Interpretation Introduction

Interpretation:

Which the principal species is at pH=6.00 has to be explained.

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