Indicators suitable for titration of pyridinium bromide with HBr should be selected. Concept Introduction: Equivalence point, determined from titration curve, refers to the stoichiometric point that indicates the specific pH when the concentration of base becomes same as the concentration of an acid or when all the analyte has been consumed by titrant. In an acid base-kind of titration , 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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Chapter 10, Problem 10.24P

Interpretation Introduction

Interpretation:

Indicators suitable for titration of pyridinium bromide with HBr should be selected.

Concept Introduction:

Equivalence point, determined from titration curve, refers to the stoichiometric point that indicates the specific pH when the concentration of base becomes same as the concentration of an acid or when all the analyte has been consumed by titrant.

In an acid base-kind of titration, 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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