Basic Principles of Calculations in Chemistry is written specifically to assist students in understanding chemical calculations in the simplest way possible. Chemical and mathematical concepts are well simplified; the use of simple language and stepwise explanatory approach to solving quantitative problems are widely used in the book. Senior secondary school, high school and general pre-college students will find the book very useful as a study companion to the courses in their curriculum. College freshmen who want to understand chemical calculations from the basics will also find many of the chapters in this book helpful toward their courses. Hundreds of solved examples as well as challenging end-of-chapter exercises are some of the great features of this book. . Students studying for SAT I & II, GCSE, IGCSE, UTME, SSCE, HSC, and other similar examinations will benefit tremendously by studying all the chapters in this book conscientiously.