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Enables students to progressively build and apply new skills and knowledge Designed to be completed in one semester, this text enables students to fully grasp and apply the core concepts of analytical chemistry and aqueous chemical equilibria. Moreover, the text enables readers to master common instrumental methods to perform a broad range of quantitative analyses. Author Brian Tissue has written and structured the text so that readers progressively build their knowledge, beginning with the most fundamental concepts and then continually applying these concepts as they advance to more…mehr
Enables students to progressively build and apply new skills and knowledge Designed to be completed in one semester, this text enables students to fully grasp and apply the core concepts of analytical chemistry and aqueous chemical equilibria. Moreover, the text enables readers to master common instrumental methods to perform a broad range of quantitative analyses. Author Brian Tissue has written and structured the text so that readers progressively build their knowledge, beginning with the most fundamental concepts and then continually applying these concepts as they advance to more sophisticated theories and applications. Basics of Analytical Chemistry and Chemical Equilibria is clearly written and easy to follow, with plenty of examples to help readers better understand both concepts and applications. In addition, there are several pedagogical features that enhance the learning experience, including: * Emphasis on correct IUPAC terminology * "You-Try-It" spreadsheets throughout the text, challenging readers to apply their newfound knowledge and skills * Online tutorials to build readers' skills and assist them in working with the text's spreadsheets * Links to analytical methods and instrument suppliers * Figures illustrating principles of analytical chemistry and chemical equilibria * End-of-chapter exercises Basics of Analytical Chemistry and Chemical Equilibria is written for undergraduate students who have completed a basic course in general chemistry. In addition to chemistry students, this text provides an essential foundation in analytical chemistry needed by students and practitioners in biochemistry, environmental science, chemical engineering, materials science, nutrition, agriculture, and the life sciences.
BRIAN M. TISSUE, PhD, is Associate Professor of Chemistry at Virginia Tech, where he teaches analytical chemistry at both the undergraduate and graduate levels. In addition to curriculum development, Dr. Tissue oversees a research program in nanomaterials and analytical spectroscopy, preparing and testing nanocomposites for catalytic activity. Among his honors, Dr. Tissue has received an NSF Career Award and a Cottrell Scholar Award from the Research Corporation for Science Advancement.
Inhaltsangabe
Preface ix I Quantitative Analysis Using Reactions That Go To ''Completion'' 1 1 Making Measurements 3 1.1 Introduction 3 1.2 GLP and a Few Other Important Acronyms 10 1.3 Precision and Random Error 15 1.4 Discarding a Suspected Outlier 25 1.5 Calibration 28 1.6 Maintaining Accurate Results 43 Practice Exercises 48 2 Sample Preparation, Extractions, and Chromatography 53 2.1 Sampling and Control Samples 53 2.2 Sample Preparation 58 2.3 Solvents and Solutions 64 2.4 Introduction to Solubility 69 2.5 Extraction 71 2.6 Stationary Phases 82 2.7 Solid-Phase Extraction (SPE) 88 2.8 Introduction to Chromatography 91 2.9 Immunoassays 96 Practice Exercises 97 3 Classical Methods 103 3.1 Introduction 103 3.2 Review of Chemical Reactions 105 3.3 Reactions in Aqueous Solution 111 3.4 Gravimetry 120 3.5 Titration 124 3.6 Titration Curves 132 3.7 Coulometry 134 Practice Exercises 137 4 Molecular Spectroscopy 141 4.1 Introduction 141 4.2 Properties of EM Radiation 142 4.3 Electromagnetic Spectrum 146 4.4 Spectroscopic Transitions 147 4.5 UV/Vis Absorption Spectroscopy 154 4.6 UV/Vis Instrumentation 156 4.7 Beer-Lambert Law 159 4.8 Molecular Fluorescence 167 Practice Exercises 171 II Reactions That Do Not Go To ''Completion.'' Equilibria in Aqueous Solutions 177 5 Acid-Base Equilibria and Activity 179 5.1 Acids and Bases 179 5.2 Weak Acids and Weak Bases 186 5.3 Water and Kw 190 5.4 Acid Strength 196 5.5 The Concept of Activity 199 5.6 Acid-Base Equilibrium Calculations 212 Practice Exercises 218 6 Buffer Solutions and Polyprotic Acids 221 6.1 Buffer Solutions 221 6.2 Alpha Fraction Plots 226 6.3 Weak Acid Titration Curve 230 6.4 Polyprotic Acids 233 Practice Exercises 242 7 Complexation and Precipitation Equilibria 245 7.1 Complex Terminology 246 7.2 Complex Equilibria 249 7.3 Competing Equilibria 256 7.4 Stepwise Complexation 263 7.5 Precipitate Equilibrium 267 7.6 Molar Solubility 275 7.7 Precipitation and Competing Equilibria 282 Practice Exercises 287 III Instrumental Methods and Analytical Separations 293 8 Electroanalytical Chemistry 295 8.1 Introduction 295 8.2 Standard Reduction Potentials 298 8.3 Using Half Reactions 302 8.4 Background on Spontaneous Reactions and Equilibrium 308 8.5 Reaction Energies, Voltages, and the Nernst Equation 311 8.6 Electrochemical Cells 314 8.7 Potentiometry 319 8.8 Ion-Selective Electrodes (ISE) 322 8.9 Voltammetry 328 Practice Exercises 336 9 Atomic Spectrometry 340 9.1 Atomization 342 9.2 Atomic Absorption Spectrometry (AAS) 346 9.3 Atomic Emission Spectrometry (AES) 354 9.4 Introduction to Mass Spectrometry (MS) 357 9.5 ICP-MS Measurements 361 9.6 Summary 362 Practice Exercises 364 10 Analytical Separations 367 10.1 Thin-Layer Chromatography 368 10.2 Chromatogram Terminology 372 10.3 Column Selection 375 10.4 High Performance Liquid Chromatography 380 10.5 Gas Chromatography 388 10.6 Molecular Mass Spectrometry 390 10.7 Electrophoresis 398 Practice Exercises 402 Index 407