Basic Chemistry Calculations is intended to help students overcome the challenges associated with solving problems in chemistry. This book contains numerous solved problems in some important areas of chemistry. These worked examples will really improve students understanding in the aspect of calculations in chemistry. This boom will be useful to students in high schools and higher institutions of learning. It will also be a useful guide for students of chemical engineering in order to improve their chemistry calculation skills which is required for proper understanding of chemical engineering calculations. The worked examples in this book are presented in a simple, logical and self-explanatory manner that will impart students with the required numerical skills for excelling in chemistry and chemical engineering calculations. Exercises are presented at the end of each topic in order for students to attempt and assess themselves. The topics covered in this book include: CALCULATIONS ON MOLE FRACTION AND MASS FRACTIONCALCULATIONS ON AVERAGE MOLECULAR MASS OF MIXED COMPOUNDS/MOLECULESCALCULATIONS INVOLVING COMBUSTIONCALCULATIONS INVOLVING LIMITING REACTANTSCALCULATIONS INVOLVING THE FORMULA OF COMPOUNDSEQUILIBRIUM REACTION CALCULATIONSThese topics are well simplified with the numerous worked examples explained in a step-by-step order under them. A thorough study of this textbook will definitely improve your calculation skills in chemistry

Calculations in Chemistry is intended to help students overcome the challenges associated with solving the numerical problems in chemistry. Chemistry is a numerical science which cannot be fully appreciated without adequate numerical skills. In fact, the lack of problem-solving skills has been recognised as one of the major reasons for the poor performance recorded in the subject over the years. Budgetary and size constraints often translate to lack of space for solving enough sample problems in core textbooks and most problems are presented in a difficult manner that douses enthusiasm for learning. Thus, a book of this nature, containing numerous solved problems drawn from all aspects of chemistry, is necessary to complement the core texts if students are to attain the required level of mastery in the subject. Meant specifically for students studying chemistry at undergraduate and postgraduate levels, this book presents the calculations in chemistry in a simple, logical and down-to-earth manner that will impart students with the required numerical skills for excelling in chemistry. wide topical coverage clear, concise introductions that explain basic principles and theoretical basis for each type of calculation numerous representative examples practice problems and answers to test what has been explained end-of-chapter summary that gives a checklist of key terms and concepts numerous exercises, including objective questions, with answers exhaustive coverage of the mole concept use of SI units and IUPAC conventions it assumes little or no prior knowledge of chemistry and mathematics comprehensive treatment of quantitative analysis appendices that supply useful information

Suitable for all examination specifications for students over 16, this friendly and reliable guide leads students through examples of each problem.

Free energy constitutes the most important thermodynamic quantity to understand how chemical species recognize each other, associate or react. Examples of problems in which knowledge of the underlying free energy behaviour is required, include conformational equilibria and molecular association, partitioning between immiscible liquids, receptor-drug interaction, protein-protein and protein-DNA association, and protein stability. This volume sets out to present a coherent and comprehensive account of the concepts that underlie different approaches devised for the determination of free energies. The reader will gain the necessary insight into the theoretical and computational foundations of the subject and will be presented with relevant applications from molecular-level modelling and simulations of chemical and biological systems. Both formally accurate and approximate methods are covered using both classical and quantum mechanical descriptions. A central theme of the book is that the wide variety of free energy calculation techniques available today can be understood as different implementations of a few basic principles. The book is aimed at a broad readership of graduate students and researchers having a background in chemistry, physics, engineering and physical biology.

Chemistry 2e is designed to meet the scope and sequence requirements of the two-semester general chemistry course. The textbook provides an important opportunity for students to learn the core concepts of chemistry and understand how those concepts apply to their lives and the world around them. The book also includes a number of innovative features, including interactive exercises and real-world applications, designed to enhance student learning. The second edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Substantial improvements have been made in the figures, illustrations, and example exercises that support the text narrative. Changes made in Chemistry 2e are described in the preface to help instructors transition to the second edition.

CALCULATIONS OF ANALYTICAL CHEMISTRY by LEICESTER F. HAMILTON, S. B. and STEPHEN G. SIMPSON. Originally published in 1922. PREFACE: The title of this book has been clfanged from Calculations of Quantitative Chemical Analysis to Calculations of Analytical Chem istry because the subject matter has been expanded to cover the stoichiometry of both qualitative and quantitative analysis. In order to include calculations usually covered in courses in qualitative analysis, some rearrangements of material have been made, new sections have been added, and chapters dealing with equilibrium constants and with the more elementary aspects of analytical . calculations have been considerably expanded. Al together, the number of sections has been increased from 78 to 114 and the number of problems from 766 to 1,032. The greater part of the book is still devoted to the calculations of quantitative analysis. Short chapters on conductometric and amperometric titrations and a section on calibration of weights have been added, and many other changes and additions have been made at various points in the text. A section reviewing the use of logarithms has been inserted, and a table of molecular weights covering most of the problems in the book is included in the Appendix. It is felt that every phase of general analytical chemistry is adequately covered by problems, both with and without answers, and that most of the problems require reasoning on the part of the student and are not solved by simple substitution in a formula. LEICESTER F. HAMILTON STEPHEN G. SIMPSON CAMBRIDGE, MASS., February, 1947. Contents include: PREFACE v PART I. GENERAL ANALYSIS CHAPTER I. MATHEMATICAL, OPERATIONS 1. Factors Influencing the Reliability of Analytical Results 1 2. Deviation Measures as a Means of Expressing Reliability ... . 2 3. Significant Figures as a Means of Expressing Reliability 3 4. Rules Governing the Use of Significant Figures in Chemical Com putations 3 5. Conventions Regarding the Solution of Numerical Problems .... 6 Problems 1-18 7 6. Rules Governing the Use of Logarithms .... 9 7. Method of Using Logarithm Tables . . 13 8. Use of the Slide Rule 14 Problems 19-24 15 CHAPTER II. CHEMICAL, EQUATIONS 9. Purpose of Chemical Equations 16 10. Types of Chemical Equations 16 11. lonization of Acids, Bases, and Salts 17 12. Ionic Equations Not Involving Oxidation 18 13. Oxidation Number 20 14. Ionic Oxidation and Reduction Equations 21 Problems 25-43 24 CHAPTER III. CALCULATIONS BASED ON FORMULAS AND EQUATIONS 15. Mathematical Significance of a Chemical P DEGREES ormula . 28 16. Formula Weights 28 17. Mathematical Significance of a Chemical Equation 29 Problems 44-70 32 CHAPTER IV. CONCENTRATION OF DEGREES SOLUTIONS 18. Methods of Expressing Concentration 36 19. Grains per Unit Volume 3f> vii CONTENTS 20. Percentage Composition. . . . . 36 21. Specific Gravity 36 22. Volume Ratios 37 23. Molar and Formal Solutions 37 24. Equivalent Weight and Normal Solution 38 25. Simple Calculations Involving Equivalents, Milliequivalents, and Normality 39 Problems 71-86 43 CHAPTER V. P] quiLiBRiUM CONSTANTS 26. Law of Mass Action 46 27. Ion Product Constant of Water 47 28. pll Value 48 Problems 87-94 49 29. lonization Constant 50 30. Common Ion Effect. Buffered Solution 52 31. lonization of Polybasic Ac