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Complex formation by 3-aminopyridine and picric acid in chloroform solution gives a

Quantitative Chemical Analysis | 8th Edition | ISBN: 9781429218153 | Authors: Daniel C. Harris ISBN: 9781429218153 475

Solution for problem 18-D Chapter 18

Quantitative Chemical Analysis | 8th Edition

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Quantitative Chemical Analysis | 8th Edition | ISBN: 9781429218153 | Authors: Daniel C. Harris

Quantitative Chemical Analysis | 8th Edition

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Problem 18-D

Complex formation by 3-aminopyridine and picric acid in chloroform solution gives a yellow product with an absorbance maximum at 400 nm. Neither starting material absorbs significantly at this wavelength. Stock solutions containing 1.00 104 M of each compound were mixed as indicated, and the absorbances of the mixtures were recorded. Prepare a graph of absorbance versus mole fraction of 3-aminopyridine and find the stoichiometry of the complex. Picric acid (mL) 3-Aminopyridine (mL) Absorbance at 400 nm 2.70 0.30 0.106 2.40 0.60 0.214 2.10 0.90 0.311 1.80 1.20 0.402 1.50 1.50 0.442 1.20 1.80 0.404 0.90 2.10 0.318 0.60 2.40 0.222 0.30 2.70 0.110

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Chapter 16 Acids, Bases, and Salts nd ChJulia Burdge & Jason Overby The McGraw-Hill Companies, Inc. 16.1 Brønsted Acids and Bases 16.2 Molecular Structure and Acid Strength Hydrohalic Acids Oxoacids Carboxylic Acids 16.3 The Acid-Base Properties of Water 16.4 The pH and pOH Scales 16.5 Strong Acids and Bases Strong Acids Strong Bases 16.6 Weak Acids and Acid Ionization Constants The Ionization Constant, Ka Calculating pH from K a Percent Ionization Using pH to Determine K a 16.

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Chapter 18, Problem 18-D is Solved
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Textbook: Quantitative Chemical Analysis
Edition: 8
Author: Daniel C. Harris
ISBN: 9781429218153

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Complex formation by 3-aminopyridine and picric acid in chloroform solution gives a