Exploring Chemical Analysis
Exploring Chemical Analysis
5th Edition
ISBN: 9781429275033
Author: Daniel C. Harris
Publisher: Macmillan Higher Education
Question
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Chapter 16, Problem 16.12P

(a)

Interpretation Introduction

Interpretation:

Color of KI solution to be before and after reaction with O3, has to be explained.

Concept Introduction:

Titration is an analytical method of quantitative chemical analysis which determines the concentration of the analyte. A reagent called titrant, is prepared as a standard solution. This titrant reacts with titrand (analyte) solution to determine the concentration of the analyte. The volume of titrant required for titration is termed as the titration volume.

Iodometric titration is a type of titration reaction in which iodides reacts with another oxidizing agent in acidic or neutral medium. As a result of this, iodides are converted to iodine and this formed iodine is back titrated against another standard reducing agent (usually sodium thiosulphate) of known concentration.

(b)

Interpretation Introduction

Interpretation:

Mass of O3 in the 1.00L bulb has to be calculated.

Concept Introduction:

Refer to part (a).

(c)

Interpretation Introduction

Interpretation:

Whether starch indicator is added at beginning or near end point of the titration has to be explained.

Concept Introduction:

Refer to part (a).

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