INSTRUMENTAL ANALYSIS-ACCESS >CUSTOM<
7th Edition
ISBN: 9781337783439
Author: Skoog
Publisher: CENGAGE C
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Chapter 24, Problem 24.12QAP
Interpretation Introduction
Interpretation:
A coulometric titration curve needs to be constructed containing 100.0 mL of a 1 M H2SO4 solution in which Fe(II) is titrated against Ce(IV) which is generated from 0.075 M Ce(III).
Concept introduction:
In coulometric titrations, a constant current is used to generate the titrant electro-analytically. In some coulometric titrations the analyte may be directly involved at the generator electrode. For example, the coulometric titration of Fe(II) in part by electro-analytically generated Ce(IV) and in part by direct electrode reaction.
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A weighed sample of sodium nitrite was treated with 0.05 mol of ceric sulfate in solution, in air-free conditions. The resulting solution was titrated with standard Fe(II) solution and 0.01 mol of Fe(II) were required. Determine the moles of sodium nitrite present in the weighed sample.
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Directions: Solve the problem with a complete step-by-step solution.
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Chapter 24 Solutions
INSTRUMENTAL ANALYSIS-ACCESS >CUSTOM<
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