EXPLORING CHEMICAL ANALYSIS W/ACCESS
EXPLORING CHEMICAL ANALYSIS W/ACCESS
5th Edition
ISBN: 9781319090180
Author: Harris
Publisher: MAC HIGHER
Question
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Chapter 10, Problem 10.23P

(a)

Interpretation Introduction

Interpretation:

Observed color change with phenolphthalein has to be identified.

Concept Introduction:

In an acid base-kind of titration, the progress of the reaction is quantified by neutralization of analyte when the definite volume of titrant is added. The indicators used are sensitive to pH changes.

(b)

Interpretation Introduction

Interpretation:

Whether any random errors may creep in when titration is performed slowly has to be identified.

Concept Introduction:

In an acid base-kind of titration, the progress of the reaction is quantified by neutralization of analyte when the definite volume of titrant is added. The indicators used are sensitive to pH changes. Suitability of such an indicator is governed by their ability to detect endpoints accurately when the equivalence point is reached. Most suitable indicators have a transition range of pH coincides with  pH at equivalence point.

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