Physical Sciences and Mathematics Commons^™

A Laboratory-Centered General Chemistry Course For College Freshmen, Alexander Vavoulis

University of the Pacific Theses and Dissertations

In order to give the laboratory-centered course a trial run and to compare it with a lecture-centered course it seemed necessary to the author that both courses should be taught and compared. The latter gave rise to the following hypotheses:

1. Students in a laboratory-centered general chemistry course show more favorable attitudes toward chemistry than do students in a lecture-centered course.
2. Students in a laboratory-centered course show as good a subject-matter mastery as students in a lecture-centered course.

A New Approach To General Chemistry Laboratory In College (With) A Laboratory Manual For General Chemistry, Constantine G. Vlassis

University of the Pacific Theses and Dissertations

Statement of the problem. This study was carried out to determine: (1) what advantages a laboratory-centered general chemistry course might have over the conventional laboratory course, and (2) whether improved understanding of laboratory work leads to better learning of chemistry. The four following questions were raised in connection with the study or this problem:

1. What is the need for a laboratory-centered course?
2. What has been done in the past to meet this need?
3. Can students learn chemistry more effectively in a laboratory-centered course as compared to the conventional course?
4. Is a laboratory-centered course to be preferred over the conventional course …

Determination Of Indium Using The Dead Stop End Point, Laurence Stanley Martens

University of the Pacific Theses and Dissertations

As the importance of indium for research and industry grows, the need for rapid, accurate analysis of the metal Increases. The dead stop titration method, which has been used for other metals, will now be applied to the quantitative determination of indium ion in aqueous solution.

The uses of indium. Indium metal las found increased used during the last few years and is now comercially available. For a long time after its spectroscopic discovery in 1863 by Reich and Richter, it was regarded as little ore than further substantiation of the chemist's periodic classification of the elements. The first major …