Exercises In Elementary Quantitative Chemical Analysis

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Excerpt from Exercises in Elementary Quantitative Chemical Analysis: For Students of Agriculture Owing to the growing demand for quantitative analytical chemistry by those engaged in the study of agriculture, it seemed to the authors that the presentation of the fundamental methods of agricultural analysis as carried out in the laboratories of the American Experiment Stations would be desirable. While this book is designed primarily as an elementary quantitative guide for the use of agricultural students, it may also be used for the work in general elementary quantitative analysis. This text-book is the outgrowth of several years' experience in teaching quantitative analysis to students specializing in Agriculture, Chemistry, Medicine, and Household Science. No attempt has been made to present a complete treatise on quantitative analysis; but a few typical exercises have been chosen to illustrate the fundamental principles and the most important methods of manipulation. To further the interest in this work, the student should be encouraged to do considerable outside reading, and there should be available for his use a number of the best books of reference. In the Appendix will be found a list of some of the most important works having a bearing on this subject, while throughout the text reference is made to the original literature. The gravimetric exercises and the work outlined under Acidimetry and Alkalimetry, together with the analysis of Milk or Feeding Material and Fertilizer, comprise the work usually accomplished by the agricultural students in one semester. Those students who desire more quantitative analysis complete the remainder of the exercises in another semester. Owing to the importance of the calculation of analytical data, this subject has been treated in considerable detail in Part V (Stoichiometry). The matter presented is arranged to be studied in conjunction with the regular laboratory exercises. In addition to the methods of solving problems, a large number of problems is given for practice. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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Excerpt from Exercises in Quantitative: Chemical Analysis, With a Short Treatise on Gas Analysis A preliminary edition of this book, as many of my friends are aware, was issued a little over a year ago for the benefit of chiefly my own students. That edition, however, was little more than a reproduction of what had long had currency in my laboratory as a trypographed book. Hence this volume may be introduced as having already been used - and I hope not without success - in a largely-attended teaching laboratory for a series of years. However it may stand with analysis generally, quantitative analysis can be taught only by examples; and in the earlier stages of the course the technicalities of the subject are the principal things to be taught. Hence our exercises on "analytical methods" (section 2) are arranged, not according to any scientific system, but so that, at any given point of his progress, the student has become familiar with as many different operations as could have been learned during the time. To some of my readers the tone of the earlier exercises more especially may savour a little of mechanical drilling. Why tell the student so minutely what he has to do and hinder him from exercising his own ingenuity? Some ten years ago, if a book like the present had been placed before me, I should have asked this question myself. But I have since come to modify my views. The technicalities of quantitative analysis are the very things which the student is not likely to find out by himself. He had better be drilled into doing them correctly. What is the good, for instance, of letting him spoil a series of ammonia determinations by mismanaging his chloro-platinate precipitates? It surely is better to show him quite directly what he has to do; and if it is, why should not the book tell him, and thus save the time of the teacher? No fear of any talented student being spoiled by a course of judicious drilling. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.