Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
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Chapter 14, Problem 14.23QAP
Interpretation Introduction
(a)
Interpretation:
The formation constant and the difference in molar absorptivities at 470 nm should be determined using linear regression and the Benesi-Hildebrand equation.
Concept introduction:
The Benesi-Hildebrand equation is:
b − length of the solution light passes through
ΔA − difference between absorbance with and without the ligand present
Δe − difference of the molar absorptivities of complex and metal ion.
Kf − formation constant
CM − concentration of metal ion
CL − concentration of ligand.
Interpretation Introduction
(b)
Interpretation:
The values of Kf and Δe should be determined using non-linear regression.
Concept introduction:
b − length of the solution light passes through
ΔA − difference between absorbance with and without the ligand present
Δe − difference of the molar absorptivities of complex and metal ion.
Kf − formation constant
CM − concentration of metal ion
CL − concentration of ligand.
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Chapter 14 Solutions
Principles of Instrumental Analysis
Ch. 14 - Prob. 14.1QAPCh. 14 - A 0.4740-g pesticide sample was decomposed by wet...Ch. 14 - Sketch a photometric titration curve for the...Ch. 14 - Prob. 14.4QAPCh. 14 - Prob. 14.5QAPCh. 14 - The accompanying data (1.00-cm cells) were...Ch. 14 - A 3.03-g petroleum specimen was decomposed by wet...Ch. 14 - Prob. 14.8QAPCh. 14 - Prob. 14.9QAPCh. 14 - The acid-base indicator HIn undergoes the...
Ch. 14 - Prob. 14.11QAPCh. 14 - Prob. 14.12QAPCh. 14 - Copper(II) forms a 1:1 complex with the organic...Ch. 14 - Aluminum forms a 1:1 complex with...Ch. 14 - Prob. 14.15QAPCh. 14 - Prob. 14.16QAPCh. 14 - Prob. 14.17QAPCh. 14 - Prob. 14.18QAPCh. 14 - Prob. 14.19QAPCh. 14 - Given the Information that...Ch. 14 - Prob. 14.21QAPCh. 14 - Mixing the chelating reagent B with Ni(II) forms...Ch. 14 - Prob. 14.23QAP
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