Description
Chemistry is a dynamic and rapidly changing field. It is an extraordinarily interesting subject to study and an intriguing one to teach. The diversity of knowledge of the beginning student presents a unique challenge to the student and to the teacher. This text is written primarily for use in courses designed to prepare students who wish to pursue a science major requiring a comprehensive course in general chemistry. These students, in most cases, have never taken a course in chemistry or have had limited instruction in the basic math that is required to solve chemistry problems, so a chemistry course can be very threatening to them.
To address this issue, this text has four major goals:
To provide a clear, consistent methodology that a student can follow to develop conceptual and quantitative problem-solving skills.
To engage the student by relying heavily on analogies that relate chemistry to daily life.
To anticipate the points where students are apt to have difficulty, and to smooth the path to understanding by explaining in detail what the pitfalls are and how to avoid them.
To present, at one time, points that may be easily confused with one another so that students can avoid making the errors. For example, if a radioactive decay problem asks for the number of atoms that have disintegratedinstead of the number remaining after a certain time, a student might easily make a mistake. If in one problem both the number disintegrated and the number remaining are required, the student can hardly make that same mistake. In a given chapter some early problems ask related questions together and later ones ask them separately to ensure that the differences are not forgotten.
Changes in the fifth edition include:
The addition of a NEW Chapter 17 on Electrochemistry, with calculation of potentials and of stoichiometric quantities from electrical quantities and vice versa. Six new in-chapter examples and forty end-of-chapter problems were added, as well as two tables, Table 17.1 "Electrical Variables and Units" and Table 17.2 "Standard Reduction Potentials".
The addition of a NEW Section 19.5 on Polyprotic Acids, with Table 19.4 on "Selected Dissociation Constants of Polyprotic Acids".
Changes in positions of several sections for better flow of ideas:
Chapter 2: Presentation of Exponential Numbers before The Metric System
Chapter 12: Presentation of Dalton's Law immediately after Ideal Gas Law
Five new Item of Interest additions:
Chapter 10: Ion mass in food chemistry
Chapter 14: High heat of water and steam
Chapter 17: Purification process of copper Galvanic cell reactions
Chapter 19: H2S, a dangerous but useful gas
New Enrichment Box on Controlled Experiments in Chapter 13
The elimination of section 16.6 on Equivalents and Normality from Chapter 16. These concepts are available online for instructors who want them; contact your McGraw-Hill Sales Representative.
Table of Contents Chapter 1: Basic Concepts Chapter 2: Measurement Chapter 3: Atoms and Atomic Masses Chapter 4: Electronic Configuration of the Atom Chapter 5: Chemical Bonding Chapter 6: Nomenclature Chapter 7: Formula Calculations Chapter 8: Chemical Reactions Chapter 9: Net Ionic Equations Chapter 10: Stoichiometry Chapter 11: Molarity Chapter 12: Gases Chapter 13: Atomic and Molecular Properties Chapter 14: Solids, Liquids, and Energies of Physical and Chemical Changes Chapter 15: Solutions Chapter 16: Oxidation Numbers Chapter 17: Electrochemistry Chapter 18: Chemical Equilibrium Chapter 19: Acid-Base Theory Chapter 20: Organic Chemistry Chapter 21: Nuclear Reactions