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All Journal Abdimas Altruis: Jurnal Pengabdian Kepada Masyarakat
Surianti, Yosefina Ermi
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PELATIHAN PRAKTIKUM KIMIA SKALA KECIL ELEKTROLISIS AIR UNTUK GURU KIMIA DI WAE NAKENG, LEMBOR, NUSA TENGGARA TIMUR Pamenang, Fransisca Ditawati Nur; Harta, Johnsen; Ratri, Monica Cahyaning; Wijayanti, Lucia Wiwid; Octaviani, Laurensia; Anggreni, Viktoria Cosinta; Surianti, Yosefina Ermi
ABDIMAS ALTRUIS: Jurnal Pengabdian Kepada Masyarakat Vol 6, No 2 (2023): Oktober 2023
Publisher : Universitas Sanata Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/aa.v6i2.5520

Abstract

Practicum is an activity that cannot be separated from chemical learning. Chemistry learning can be more meaningful through attractive practicum activities. One obstacle that arises in the implementation of the practicum is the availability of adequate practicum materials and tools. Small-scale chemistry practicum can overcome this obstacle, which is in the form of the use of materials that are environmentally friendly and available in the surrounding environment, as well as simple practicum tools that can be used. One of the small-scale chemistry practicums trained is the water electrolysis practicum. Simple practicum using sodium sulfate and water, able to explain the electrolysis of water well. Through this small-scale chemistry practicum training, teachers are expected to have the skills to carry out simple practicums and develop other practicum topics while still paying attention to the scientific field. Through this small-scale-based chemical practicum training, there is an increase in the mastery of the concept shown by an increase in the average score from 30.67 to 73.33. The teachers give a positive response regarding the implementation of this training activity.
PELATIHAN PRAKTIKUM KIMIA SKALA KECIL: PEMBUATAN INDIKATOR ASAM BASA BERUPA BOLA ALGINAT UNGU UNTUK GURU-GURU KIMIA DI SMA SANTA FAMILIA Harta, Johnsen; Nur Pamenang, Fransisca Ditawati; Wijayanti, Lucia Wiwid; Ratri, Monica Cahyaning; Anggreni, Viktoria Cosinta; Surianti, Yosefina Ermi; Octaviani, Laurensia
ABDIMAS ALTRUIS: Jurnal Pengabdian Kepada Masyarakat Vol 6, No 1 (2023): April 2023
Publisher : Universitas Sanata Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/aa.v6i1.5490

Abstract

The practicum management of chemistry teachers at senior high school on the topic of acid-base is quite good, although the majority are monotonous in testing acid-base properties using large amounts of solution. Some schools only limit the practical use of extracts from various flowers with certain color pigments, then tested on several samples and used as natural indicators, but have not paid attention to the number of reagents and estimated waste generated. The purpose of this activity is to improve the quality of classical practicum and the attractiveness of acid-base indicators from materials that refer to the principles of green chemistry. Service activities are carried out in training through the practicum method of making acid-base indicators using purple cabbage extract, sodium alginate, and 1% CaCl2 solution. This training provides a new and innovative description of the formation of purple cabbage extract gel as an acid-base indicator in the form of red balls under acidic conditions and green under alkaline conditions. Chemistry teachers were very happy and felt that this practicum was simple and interesting to be packaged and brought to the routine practicum conducted at schools.
Co-Authors Anggreni, Viktoria Cosinta Fransisca Ditawati Nur Pamenang Johnsen Harta Lucia Wiwid Wijayanti Monica Cahyaning Ratri Nur Pamenang, Fransisca Ditawati Octaviani, Laurensia