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2012-11-05
2012-10-23
SOME PHYSICAL MEASUREMENTS
SOME PHYSICAL MEASUREMENTS
SOMEONE HAS SAID That the abiding impulse in every human being is to seek order and harmony. This search for order is clearly visible in our study of nature. We see that many objects are rigid, but that others flow easily and do not have definite shapes. We want to distinguish these types and we even give them names-solids and liquids. When we try to describe substances such us tar, butter, and glass, which do not fit well into either the solid or the liquid class, we may be somewhat confused. We many decide arbitrarily...
2012-10-22
PREFACE
Question : Why should a student take a course in general chemistry ?
Answer : Because it teaches him to think, to reason, and to imagine.
This answer, given by Professor William McPherson during a discussion at an American Chemical Society meeting in 1922, is as valid today as it was then. Since that time chemistry has come to influence our lives so directly and to reveal nature so beautifully that many people feel that any educated person should have some acquaintance with chemistry and its methods.
The...
