Abordagem dos conceitos ácido-base em livros didáticos de Química do Ensino Superior

Abstract

This work presents an analysis of the definitions of Acid and Base in most used Textbooks in the areas of Chemistry (Analytical Chemistry, Inorganic Chemistry, Organic Chemistry, Biochemistry and Physical Chemistry) at the higher level in Licentiate Chemistry courses from federal universities of RS. The study aimed to evaluate the most used Textbooks in each area, based on five criteria: Approach Perspective, Sequence of Subjects, Number of Pages, Use of History of Science, Functionality of Visual Resources and Levels of representation involved in visual resources. Approximately 400 visual representations related to the subject were analyzed. The criteria are that most of the theories found in the books are by Bronsted-Lowry and Lewis, regarding the criterion functionality of the visual resources, the most used are: Macroscopic (Mac), Submicroscopic (Smic) and Symbolic (Simb), being that Book B is the one that contemplates the greater number of levels of representation involved in the visual resources, however, none exhibits the History of Science. It is hoped that the development of this work will contribute to discussions about the theme and quality of the textbooks of the area.