Elementary Chemistry a Laboratory Manual (Classic Reprint)
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| Partner: | buecher.de |
| Hersteller: | Forgotten Books (Linebarger, E.) |
| Stand: | 2015-08-04 03:50:33 |
Produktbeschreibung
Excerpt from Elementary Chemistry a Laboratory Manual This Laboratory Manual is intended to accompany the author´s Elementary Chemistry, although it may be used independently or in connection with other text-books. To what was said in the preface to that book there may be added the following: Laboratory work in chemistry means the performance of experiments. This involves the selection of suitable experiments, and directions as to their performance. The experiments should be short and should require only simple apparatus and easy manipulation. They should emphasize one main point. The directions for each experiment should be just full enough to insure its successful performance. They ought not to point out what may be expected to happen, and unthinking work should be prevented by questions which cannot be answered by a mere yes or no. Descriptions of most manipulations should be separated from the directions proper, and should be well illustrated. The title of the experiment ought to state explicitly the main point, so that the student may have it clearly in mind while performing the experiment. Quantitative work is now recognized as having a legitimate place in an elementary laboratory course. Quantitative experiments, however, should be simple and not demand more than a double period for their performance. The results should be considered satisfactory when they represent fairly well all that the method and the apparatus are capable of yielding. Qualitative analysis should not be entirely neglected, but it should not be allowed to degenerate into mere "test-tubing." Students, as a rule, find it fascinating work, and apparently derive benefit from it. 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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