Volume 6, Issue 5

Using Technology to Support Chemistry Teaching and Learning in the Context of Brazilian Distance Education
Original Research
Distance education in Brazil exhibits a powerful impetus for education for all. This study examines the use of educational technologies to teach and learn Chemistry as part of an effort to contribute to teachers’ professional development in the context of Brazilian education. Criteria for selection and analysis of different technologies were identified based on teachers’ input and in the context of high school settings. They are: cost, ease of use, applicability in the classroom. The results if this analysis showed that after overcoming initial resistance, teachers used different technologies to increase engagement in the online classroom.
World Journal of Chemical Education. 2018, 6(5), 223-229. DOI: 10.12691/wjce-6-5-4
Pub. Date: October 31, 2018
10278 Views2922 Downloads
Practical pH Measurement and Theoretical Approach: Acid-Base System
Original Research
This study proposes a laboratory experiment for undergraduate students based on the comparison of Classical method (Acid-base titration) with Instrumental method (pH metric titration) and response of glass electrode towards dilute solution of acid/base. Current methodology inculcate the students better about the theoretical approach and practical outcomes of pH measurement for a dilute acid/base solution.
World Journal of Chemical Education. 2018, 6(5), 218-222. DOI: 10.12691/wjce-6-5-3
Pub. Date: October 25, 2018
9627 Views1732 Downloads
Re-Experiencing Chemistry with Augmented Reality: New Possibilities for Individual Support
Original Research
Based on the example of Augmented Reality (AR) this article examines the use of digital media over tablets in chemistry lessons. The structure of an AR-centered learning environment for chemical experiments is explained against the background of learning success, motivation and self-determination. The results of an empirical case study for comparison with analog media are presented, according to which AR can be regarded as a promising tool for visualization in chemistry lessons.
World Journal of Chemical Education. 2018, 6(5), 212-217. DOI: 10.12691/wjce-6-5-2
Pub. Date: October 17, 2018
13877 Views2965 Downloads
The Analgesic Metamizol (Dipyrone). Part 2: Adsorption, Oxidative and Reductive Degradation
Original Research
A drastic increase in pharmaceuticals consumption has resulted in a high load of pharmaceuticals in wastewater, resulting in an obvious need for detoxification. Metamizol is a typical representative of an analgesic non-steroidal agent that hydrolyzes into 4-Methylantipyrine (4-MAA). In this article, we show some simple adsorption, oxidation and reduction experiments that can either collect or degrade 4-MAA and some of its related metabolism products. The main successful method in detoxifying these substances is shown to be reduction at moderate temperature.
World Journal of Chemical Education. 2018, 6(5), 204-211. DOI: 10.12691/wjce-6-5-1
Pub. Date: October 15, 2018
13595 Views2287 Downloads1 Likes