Preface 前言 General chemistry is an important basic curriculum in medical colleges. Through the study of general chemistry, students can master the essential concepts, theories and their applications in medicine. All these can be helpful for students’ consequent courses, work, scientific research and ability training. The present book is intended to serve as a textbook for international students majoring in medical professional. It also applies to the bilingual teaching for clinical medical students as well as the students from other related specialties such as preventive medicine, medical imaging, nursing, stomatology, pharmacy, and public health services. The teaching material is written by the teachers who have taught international students for years. Many years of teaching practice in English and educational research has made the contents of general chemistry more rational and practical. The textbook is designed to put chemistry in the context of medical science as well as other disciplines in which an understanding of the fundamentals of chemistry and of living things is valuable. The material covered collects nearly all key points of general chemistry and systematically practical exercises which involve medical points. We hope we have set up a clear bridge between chemistry and medicine by the text edition. Otherwise, in science field, chemistry is the foundation of biochemistry, molecular biology, medicine, pharmacy and other medical related scope. It can provide methods to analyze and solve medical related problems. Therefore, it is very important to study general chemistry for medical students, not only for knowledge memorizing, but using chemistry as a proper tool to analyze and solve problems. This book is a good introduction to general chemistry for the first year medical students. The teaching material is edited in thirteen chapters, mainly introducing chemical knowledge needed in higher education such as the theory of dilute solutions, the principle of physical chemistry, basic knowledge of material structure, analytical methods, etc. The first four chapters (except for Chapter 1) introduce the concepts of solutions, including the colligative properties of dilute solutions in Chapter 2, electrolyte solutions in Chapter 3, buffer solutions in Chapter 4. We discuss the method and significance of acid-base titration in Chapter 5. The Chapter 6, and Chapter 7 deal with the thermodynamics and the kinetics of chemical reactions. Chemical equilibrium and electrochemistry are discussed in the next two chapters, and then from chapter 10 to 11, the materials focus on the structures of atoms and molecules. At last, the coordination compounds and colloids will be discussed. At the end of the book, there are the answers to all the problems presented in this book. We would like to express our sincere gratitude to all of the contributors who wrote or edited the chapters of this textbook. The support of the institution, International College, Tianjin Medical University is essential for this book. We especially would like to acknowledge HAN Fei, dean of the college, and his colleagues, for their encouragement and substantive support. We appreciate the editors of the publisher, especially Mrs. Li Jun, for helpful advice and support. We have made all efforts to make this book as clear, practical and readable as possible. Finally, we welcome any comments, criticisms and suggestions from readers on this book for the improvement of our work. Chen Zhenghua Cao Haiyan Qiao Hua November 2019

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