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All Journal JURNAL PENGABDIAN KEPADA MASYARAKAT Lantanida Journal JPPIPA (Jurnal Penelitian Pendidikan IPA) Indonesian Journal of Chemical Science and Technology Hydrogen: Jurnal Kependidikan Kimia Jurnal Nasional Holistic Science CHEDS: Journal of Chemistry, Education, and Science Reflection Journal JIPI (Jurnal IPA dan Pembelajaran IPA)
Pratiwi, Alfira Julian
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Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Energy Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Influence of Temperature and Stirring Duration on the Solubility Kinetics of Palm Sugar (Arenga Pinnata) in Water: Implications for Food Processing Efficiency Rafidah Almira Samosir; Alfira Julian Pratiwi; Ekin Dwi Arif Kurniawan; Mutia Ardila; Trimutia Wulandari; Flia Arnesta Sipayung; Dira Rahma Cahya; Nove Briani Minar Sihombing; Einstenia Sirait; Moondra Zubir; Abd Hakim S
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 8 No. 2 (2025): JULY 2025
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v8i2.68737

Abstract

Palm sugar (Arenga pinnata) is widely used in traditional and industrial food processing, where its solubility plays a crucial role in determining product consistency and efficiency. However, most previous studies have focused on the solubility of refined cane sugar, leaving limited understanding of how temperature and stirring conditions affect the dissolution behavior of palm sugar, which has a more complex composition. This study aims to examine the effect of temperature, solute mass, and stirring duration on the solubility of palm sugar in water. A laboratory-based experimental method was employed, varying temperature (50°C, 75°C, 100°C), sugar mass (20 g and 40 g), and stirring duration (1 and 2 minutes). In general, the findings indicate that higher temperature accelerates the dissolution rate, while greater solute mass extends dissolution time. These results confirm temperature as the dominant factor influencing dissolution kinetics. The implications of this study include improving household practices for faster sugar preparation, optimizing processing efficiency in small-scale food industries, and contributing to food science education by providing an applied example of solubility principles.
Integrating Virtual Laboratories in Chemistry Education: Vocational Students’ Responses to Cation Qualitative Analysis Samosir, Rafidah Almira; Ardila, Mutia; Pratiwi, Alfira Julian; Kurniawan, Ekin Dwi Arif; Ridho, Dimas
Hydrogen: Jurnal Kependidikan Kimia Vol. 13 No. 2 (2025): April 2025
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v13i2.15432

Abstract

Research on student responses and the challenges of implementing virtual laboratories in qualitative cation analysis practicums within vocational pharmacy education remains limited. This study aims to explore student responses to the use of virtual laboratories as an alternative learning tool and to identify the challenges faced during its implementation. A qualitative approach with a case study method was employed. Data were collected through questionnaires and classroom observations during the learning process. The participants were 41 Grade XII students of the Pharmacy Program at SMK Galang Insan Mandiri Binjai, who engaged in virtual laboratory-based learning for qualitative cation analysis. The results indicate that virtual laboratories enhance student engagement and comprehension of the subject matter. Students responded positively to the use of virtual labs, reporting increased motivation and interest in developing technology-related skills. However, challenges such as limited digital literacy and infrastructure issues were also identified. The study suggests that virtual laboratories should be complemented with hands-on practicum sessions to provide a balanced and realistic learning experience. These findings offer valuable insights into the potential and limitations of virtual laboratory implementation in vocational pharmacy education.
General Chemistry Class Perspective On The Utilization Of Young Coconut water To Treat Fever Symptom Ridho, Dimas; Juwitaningsih, Tita; Samosir, Rafidah Almira; Pratiwi, Alfira Julian; Ardila, Mutia; Kurniawan, Ekin Dwi Arif; Sianipar, Mirna Wulan Sari; Alisya, Syalwa Nur; Br. Hutahuruk, Novitasari; Tafonao, Firman Satria
Hydrogen: Jurnal Kependidikan Kimia Vol. 13 No. 3 (2025): June 2025
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v13i3.15819

Abstract

This study aims to analyze the perspectives of students from the Department of Mathematics enrolled in a General Chemistry class regarding the use of young coconut water as a natural remedy to treat fever symptoms. The research is grounded in the widespread trust of Indonesian society in herbal medicine, particularly young coconut water, which has been traditionally used across generations to treat various health conditions, including fever. Young coconut water is known to contain vital nutrients such as electrolytes (potassium, sodium, magnesium), B-complex vitamins, and vitamin C, which help lower body temperature naturally, especially during dehydration caused by fever. A quantitative approach with a descriptive survey method was employed. The data were collected using a closed questionnaire based on a Likert scale, which was tested for validity and reliability, achieving a Cronbach's Alpha value of 0.977-indicating a high level of reliability. Results showed that students' average scores in knowledge (3.90), understanding (3.81), attitude (3.89), and application (3.87) were all in the high category. This indicates that students not only understand the benefits of young coconut water but also grasp scientific concepts related to electrolyte function in fluid balance and immune response. Despite the high scores, some misconceptions persist. For example, a few students believe young coconut water can entirely replace medical treatment or that higher consumption leads to faster healing without regard for appropriate dosage. This highlights the need for improved science-based health literacy. The study concludes that continuous health education through lectures, seminars, and healthy campus campaigns integrating both traditional and medical approaches is essential. These findings are significant in promoting the wise and measurable use of natural remedies like young coconut water while avoiding misuse. Furthermore, the results can serve as a basis for future research, such as clinical trials or laboratory comparisons with other rehydration fluids, and can help develop health promotion policies in academic settings to encourage smart and healthy decision-making among students.
Pengembangan E-modul Berbasis Problem-Based Learning dan Pendekatan Deep Learning pada Materi Termokimia Sitinjak, Ezra Rohanauli; Pulungan, Ahmad Nasir; Dalimunthe, Makharany; Kurniawan, Ekin Dwi Arif; Pratiwi, Alfira Julian; Ardila, Mutia; Samosir, Rafidah Almira
Reflection Journal Vol. 6 No. 2 (2026): June
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/4rgcf177

Abstract

Penelitian ini bertujuan untuk mengembangkan e-modul pembelajaran kimia berbasis Problem-Based Learning (PBL) yang terintegrasi dengan pendekatan deep learning pada materi termokimia serta mengetahui tingkat kelayakan, kepraktisan, dan efektivitasnya. Penelitian ini merupakan penelitian pengembangan (Research and Development) dengan model 4D (Define, Design, Develop, Disseminate). Subjek penelitian adalah siswa kelas XI SMA Negeri 17 Medan tahun ajaran 2025/2026. Instrumen yang digunakan meliputi lembar validasi ahli, angket respon siswa, serta tes hasil belajar (pretest dan posttest). Hasil penelitian menunjukkan bahwa e-modul yang dikembangkan dinyatakan layak berdasarkan penilaian ahli materi dan ahli media. Tingkat kepraktisan e-modul tergolong baik berdasarkan respon siswa terhadap kemudahan penggunaan, tampilan, dan manfaat pembelajaran. Selain itu, e-modul terbukti efektif dalam meningkatkan hasil belajar siswa dengan nilai N-gain sebesar 0,71 yang termasuk dalam kategori tinggi. Dengan demikian, e-modul berbasis PBL dan pendekatan deep learning dapat digunakan sebagai bahan ajar yang inovatif untuk meningkatkan pemahaman konsep, keterlibatan, serta kemampuan berpikir kritis siswa pada materi termokimia. Development of an E-Module Based on Problem-Based Learning and a Deep Learning Approach in Thermochemistry This study aims to develop a chemistry e-module based on Problem Based Learning (PBL) integrated with a deep learning approach on thermochemistry material and to determine its validity, practicality, and effectiveness. This research employed a Research and Development (R&D) method using the 4D model (Define, Design, Develop, Disseminate). The subjects were eleventh-grade students of SMA Negeri 17 Medan in the 2025/2026 academic year. The instruments used included expert validation sheets, student response questionnaires, and learning outcome tests (pretest and posttest). The results showed that the developed e-module was valid based on expert evaluations. The practicality level was categorized as good based on student responses regarding ease of use, design, and learning benefits. Furthermore, the e-module was proven effective in improving students’ learning outcomes with an N-gain score of 0.71, categorized as high. Therefore, the PBL-based e-module integrated with a deep learning approach can be used as an innovative teaching material to enhance conceptual understanding, student engagement, and critical thinking skills in thermochemistry learning.
VALIDITY AND PRACTICALITY OF STEM-PBL BASED THERMOCHEMISTRY TEACHING MATERIALS FOR CHEMISTRY EDUCATION STUDENTS Dwy Puspita Sari; Mutiara Agustina Nst; Dewi Syafriani; Alfira Julian Pratiwi
JPPIPA (Jurnal Penelitian Pendidikan IPA) Vol. 11 No. 1 (2026): June 2026
Publisher : Universitas Negeri Surabaya in collaboration with Perkumpulan Pendidik IPA Indonesia (PPII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jppipa.v11n1.p79-85

Abstract

This study aimed to develop STEM-PBL-based thermochemistry teaching materials and examine their validity and practicality for use in chemistry education. This research employed a Research and Development (R&D) approach using the ADDIE model, limited to the Analysis, Design, and Development stages. Following product development, expert validation and a limited practicality assessment were conducted. The research subjects consisted of three expert validators and 30 students from the Chemistry Education Study Program. The instruments used were validity and practicality questionnaires employing a four-point Likert scale. Validity data were analyzed using average validation scores, while practicality data were analyzed using the percentage of student responses. The results showed that the developed teaching materials obtained an average validity percentage of 93%, categorized as highly valid. The practicality assessment yielded a percentage score of 92%, categorized as highly practical. Students responded positively to the developed teaching materials, indicating that they were easy to use, attractive, and beneficial for supporting thermochemistry learning activities. The practicality assessment was limited to student responses and did not evaluate learning effectiveness. Therefore, the STEM-PBL-based thermochemistry teaching materials are considered highly valid and highly practical for use in chemistry education.
Pengembangan E-modul Kimia Berbasis  PBL dan Deep Learning pada Materi Termokimia Sitinjak, Ezra Rohanauli; Pulungan, Ahmad Nasir; Dalimunthe, Makharany; Kurniawan, Ekin Dwi Arif; Pratiwi, Alfira Julian; Ardila, Mutia; Samosir, Rafidah Almira
Reflection Journal Vol. 6 No. 2 (2026): June
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/4rgcf177

Abstract

Penelitian ini bertujuan untuk mengembangkan e-modul kimia berbasis Problem-Based Learning (PBL) yang terintegrasi dengan pendekatan deep learning pada materi termokimia serta menganalisis kelayakan, kepraktisan, dan efektivitasnya. Penelitian ini menggunakan metode Research and Development dengan model 4D (Define, Design, Develop, Disseminate). Subjek penelitian adalah 32 siswa kelas XI SMA Negeri 17 Medan yang dipilih secara purposive sampling karena mewakili kemampuan akademik heterogen dan sesuai kebutuhan uji coba produk. Instrumen penelitian meliputi lembar validasi ahli, angket respons siswa, serta tes hasil belajar pretest-posttest. Hasil penelitian menunjukkan e-modul berada pada kategori sangat layak untuk aspek media (86%) dan layak untuk aspek materi (73,38%). Respons siswa menunjukkan kategori praktis, sedangkan efektivitas ditunjukkan oleh nilai N-gain 0,71 (kategori tinggi). Temuan ini menegaskan bahwa integrasi PBL dan deep learning dalam bahan ajar digital mampu memperkuat pembelajaran bermakna, keterlibatan siswa, dan pemahaman konseptual pada materi kimia. Development of a PBL- and Deep Learning-Based Chemistry E-Module on Thermochemistry  This study aims to develop a chemistry e-module based on Problem-Based Learning (PBL) that integrates a deep learning approach into thermochemistry material, as well as to analyze its feasibility, practicality, and effectiveness. This study employs the Research and Development method using the 4D model (Define, Design, Develop, Disseminate). The subjects of the study were 32 eleventh-grade students at State High School 17 Medan, selected via purposive sampling because they represented a heterogeneous academic ability and met the requirements for product testing. Research instruments included an expert validation sheet, a student response questionnaire, and pretest-posttest learning outcome tests. The results of the study indicate that the e-module falls into the “highly suitable” category for the media aspect (86%) and the “suitable” category for the content aspect (73.38%). Student responses indicate the “practical” category, while effectiveness is demonstrated by an N-gain value of 0.71 (high category). These findings confirm that the integration of PBL and deep learning in digital instructional materials can enhance meaningful learning, student engagement, and conceptual understanding of chemistry content.
Co-Authors Abd Hakim S Afrilia Tria Ivanka Agnes Aprilyani Br Silitonga Ahmad Nasir Pulungan Alisya, Syalwa Nur Anna Sakila Ardila, Mutia Br. Hutahuruk, Novitasari Budiman Anwar Dalimunthe, Makharany Damanik, Marini Dewi Syafriani Dimas Ridho Dindy Louiza Pangaribuan Dira Rahma Cahya Einstenia Sirait Eren Nazura Faizah A. Nasution Feri P. Jahata Samosir Flia Arnesta Sipayung Geby Mai Irawan Gioni Thesia Boru Simbolon Gresvita Sanova Turnip HERNANI - Ida Duma Riris Indra Koto Juwitaningsih, Tita Kurniawan, Ekin Dwi Arif Moondra Zubir Muhammad Fadhli Mutia Ardila Mutiara Agustina Nst Najwa Putri L. Nasution Ningsi, Rira Octa Nove Briani Minar Sihombing Nur, M Rosyadi Izzuddin Okta Miranda Samosir Ratna Sari Dewi Samosir, Rafidah Almira Sari Mawaddah Sari, Dwy Puspita Sa’diyah, Halimatus Sianipar, Mirna Wulan Sari Sitinjak, Ezra Rohanauli Sri Adelila Sari Tafonao, Firman Satria Tetra Tasya Anggraini Butar Trimutia Wulandari Vivy Cintia Laudia Hutagaol