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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Question
Chapter 14, Problem 14.5QAP
Interpretation Introduction
Interpretation:
Predict the shape of the titration curve for the reaction between Ethylenediaminetetraacetic acid (EDTA) and the bismuth (III) complex.
Concept introduction:
The photometric titration curve is the plot showing the relationship between the absorbance of the solution corrected for the particular volume changes versus the volume of the titrant present in the solution.
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Why is EDTA complex formation less complete at lower pH?
EDTA abstracts bismuth(III) from its thiourea complex:Bi1tu2631 1 H2Y22 S BiY2 1 6tu 1 2H1where tu is the thiourea molecule (NH2)2CS. Predict the shape of a photometric titration curve based on thisprocess, given that the Bi(III) or thiourea complex is the only species in the system that absorbs light at 465nm, the wavelength selected for the analysis.
Write the name of the structure and the magnetic behaviour of each one of the following complexes:
(i) [Pt(NH3)2Cl(N02)]
(ii) [CO(NH3)4 Cl2] Cl
(iii) Ni(CO)4
(At. nos. Co = 27, Ni = 28, Pt = 78)
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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