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Arfak Chem: Chemistry Education Journal
Published by Universitas Papua
ISSN : 2615627X     EISSN : 26156288     DOI : https://doi.org/10.30862/accej.v5i1.368
Core Subject : Humanities, Science, Education, Social,
Humanities Chemistry Education Social Sciences
Arfak Chem: Chemistry Education Journal is a scientific journal, published by Chemistry Education Department, University of Papua. This journal is published 2 times in a year, June and December. This journal contains research results relating to the topic of education and chemistry teaching.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 93 Documents
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Analisis Kadar Alkohol Nira Manis Pohon Aren (Arenga pinnata Merr) Lidiawati, Dewi; Mubarak, Syahrul; Khaerani, Nurul
Arfak Chem: Chemistry Education Journal Vol. 7 No. 2 (2024): Arfak Chem
Publisher : Universitas Papua, Manokwari, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/accej.v7i2.782

Abstract

Nira manis pohon aren termasuk minuman yang mengandung alkohol karena selama proses penyadapan terjadi proses fermentasi sehingga terbentuk senyawa alkohol yang mudah menguap. Jika fermentasi dibiarkan secara terus menerus berlangsung sampai beberapa hari, maka akan menjadi asam cuka. Penelitian ini bertujuan untuk mengetahui jumlah kadar alkohol pada nira manis pohon aren (Arenga pinnata Merr). Sampel yang digunakan pada penelitian ini yaitu tuak manis dengan waktu penyimpanan 4 jam, 7 jam dan 10 jam dalam suhu ruang. Hasil penelitian tuak manis pohon aren (Arengga pinnata Merr) di Desa Patampanua Kecamatan Maarioriawa Kabupaten Soppeng dengan waktu penyimpanan 4 jam masih aman untuk dikonsumsi, sedangkan tuak manis dengan penyimpanan 7 dan10 jam teridentifikasi mengandung alkohol dan termasuk dalam golongan B (sedang) yaitu minuman keras dengan kadar alkoholnya lebih dari 5% - 20%. Golongan ini sudah termasuk golongan yang dapat memabukkan untuk pemakainya dan tidak boleh dikomsumsi (Al Zuhri & Dona, n.d.)
Relationship Between Learning Style and Students’ Cognitive Ability In Chemistry Subjects Kurniawati, Yenni; Diva; Lina, Ejma Rukma; Nabillah, Marwana; Sari, Ceria Purnama
Arfak Chem: Chemistry Education Journal Vol. 7 No. 2 (2024): Arfak Chem
Publisher : Universitas Papua, Manokwari, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/accej.v7i2.803

Abstract

The diverse characteristics of chemistry materials require attention to the needs of one of them, namely the tendency of learning styles that students have, for that learning style is something that needs to be studied in relation to students' cognitive abilities. The purpose of this study was to determine the relationship between learning styles and chemistry cognitive abilities of Madrasah Aliyah Negeri Kampar students. Learning style data obtained from questionnaire scores, interviews and observations of students, the value of cognitive abilities obtained from the test results of students' chemistry cognitive abilities on atomic structure material. subject of this research is Madrasah Aliyah Negeri Kampar students, while the object of research is the relationship between learning styles with students' cognitive abilities in chemistry subjects. The sample in this study was taken from class X IPA 1 which amounted to 30 people.. Sampling in this study using purposive sampling technique. Data collection was done through observation, questionnaires, interviews, tests, documentation. The results of this study indicate that students with visual learning style tendencies are more than audio learning style tendencies followed by kinesthetic learning style tendencies and students with visual learning style tendencies on atomic structure material have better cognitive ability scores. Furthermore, the data from the observation of the relationship between learning styles and students' chemistry cognitive abilities were tested using product moment correlation. The results of data processing obtained rxy = 0.838 > rt = 0.361, this means Ha is accepted and Ho is rejected. So that there is a positive and significant correlation between the learning style variable and the variable cognitive abilities of students in chemistry subjects Madrasah Aliyah Negeri Kampar
Efektivitas model PBL-GI dalam meningkatkan literasi sains pada materi kesetimbangan kimia di SMA Mutmainnah; Mardhiya, Julia; Nugroho, Deni Ebit
Arfak Chem: Chemistry Education Journal Vol. 8 No. 1 (2025): Arfak Chem
Publisher : Universitas Papua, Manokwari, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/accej.v8i1.837

Abstract

Ideally, students should have scientific literacy skills to understand and apply chemical concepts in real life. Students' scientific literacy is still low, especially in understanding abstract chemical equilibrium material. This study aims to analyze the effectiveness of the Problem-Based Learning-Group Investigation (PBL-GI) model in improving students' scientific literacy in chemical equilibrium material. This study used a quasi-experimental method with a nonequivalent control group design. The sample was selected using the cluster random sampling technique, and data were collected through test and non-test techniques. The results of the study showed that the PBL-GI model was effective in improving students' scientific literacy, as evidenced by the results of the hypothesis test (tcount = 4.824> ttable = 1.669), and the N-gain value of the experimental class (0.6487) was higher than that of the control class (0.5064). Thus, Ha is accepted, namely, the PBL-GI model effectively improves students' scientific literacy skills. The results of this study are expected to encourage teachers to design problem-based learning relevant to real life.
Pengujian aktivitas antimikroba ekstrak daun kersen (Mutingia calabura L.) menggunakan pelarut nades (Natural Deep Eutectic Solvents) dengan metode disc diffusion Marliza, Hesti; Utami, Rury Trisa; Amelia, Ayu; Pratiwi, Reri
Arfak Chem: Chemistry Education Journal Vol. 8 No. 1 (2025): Arfak Chem
Publisher : Universitas Papua, Manokwari, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/accej.v8i1.889

Abstract

Antibiotic resistance is one of the significant global health challenges, prompting the search for new antimicrobial compounds from natural sources. One promising plant is cherry leaves (Muntingia calabura L.), which are known to contain flavonoids and other bioactive compounds with antibacterial potential. This study evaluated the antimicrobial activity of cherry leaf extract obtained through Ultrasound-Assisted Extraction (UAE) using Natural Deep Eutectic Solvents (NADES) as extraction solvents. Two types of NADES were used: a mixture of choline chloride: citric acid (1:2) and choline chloride: glycerol (1:2), which offer advantages such as low toxicity, high stability, non-volatility, and environmental friendliness compared to conventional organic solvents. Antimicrobial activity was assessed using the disc diffusion method against Escherichia coli and Staphylococcus aureus. The results showed that the extract using choline chloride: citric acid as solvent produced inhibition zones of 22.5 mm against E. coli and 16.05 mm against S. aureus. In contrast, the extract using choline chloride glycerol exhibited low activity against E. coli (3.41 mm) and was inactive against S. aureus. These findings indicate that combining UAE and citric acid-based NADES is an effective and sustainable approach for extracting bioactive compounds to develop natural antibacterial agents.
Pengaruh rasio penambahan gula tebu dan stevia terhadap karakteristik fisikokimia dan organoleptik minuman kesehatan pokak Hajar, Risa Dewi; Nurhayati, Anis
Arfak Chem: Chemistry Education Journal Vol. 8 No. 1 (2025): Arfak Chem
Publisher : Universitas Papua, Manokwari, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/accej.v8i1.902

Abstract

Pokak is a traditional Indonesian beverage renowned for its health benefits, typically sweetened with high-calorie sugars like granulated sugar. Excessive consumption of such sweeteners can elevate the risk of obesity and diabetes. Incorporate healthier alternatives like stevia to enhance Pokak's health profile (Stevia rebaudiana B.). This study aims to evaluate the impact of varying ratios of brown sugar cane and stevia on the physicochemical properties (sugar content and viscosity) and organoleptic properties of pokak. Include stevia-to-cane sugar ratios of 60:40, 70:30, 80:20, 90:10, and 100:0. Sugar content was measured using a refractometer, and viscosity was assessed with an Ostwald viscometer. Findings indicate that increasing stevia proportions significantly reduce sugar content and viscosity. The 70:30 stevia-to-cane sugar formulation received the highest organoleptic scores, suggesting an optimal balance between natural sweetness and acceptable thickness. This combination is recommended as a healthier formulation for pokak without compromising consumer acceptance.
The impact of 'playing victim' behavior on students' communication skills in chemistry learning Azzajjad, Muhammad Fath; Ahmar, Dewi Satria
Arfak Chem: Chemistry Education Journal Vol. 8 No. 1 (2025): Arfak Chem
Publisher : Universitas Papua, Manokwari, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/accej.v8i1.903

Abstract

Students' communication skills can be influenced by “playing victim” behavior. No study explicitly links playing victim behavior with a decrease in student communication skills in chemistry learning, even though affective aspects such as this have great potential to influence interaction and understanding of scientific concepts collaboratively. This research aims to discover how such behavior impacts students' communication skills at SMAN 1 Sindue Tobata. This study used descriptive and inferential quantitative methods. As part of this study, 64 students from two Natural Science Program Batch 2023 classes were given questionnaires. The analysis showed that the p values for the victim group (p = 0.4194) and the non-victim group (p = 0.8846) were greater than alpha 0.05, indicating normal data distribution. In addition, the t-test showed a significant difference in communication skills between the two groups (t = -3.7365, p = 0.0004), with the victimized group showing lower communication skills. According to this study, students' communication skills in chemistry learning can be affected by “playing-victim” behavior.
Efektifitas model pembelajaran problem based learning dengan media animasi terhadap motivasi belajar siswa pada materi asam basa Hamsyah, Eka Fitriana; Gustina
Arfak Chem: Chemistry Education Journal Vol. 8 No. 1 (2025): Arfak Chem
Publisher : Universitas Papua, Manokwari, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/accej.v8i1.910

Abstract

More abstract chemistry learning makes students have difficulty understanding the concept, making them less motivated to follow the learning. This research aims to determine whether or not the problem-based learning model with animation media effectively increases students’ learning motivation. The research methodology is one group pretest-posttest. The research instrument is a student learning motivation questionnaire comprising 15 statement items covering enthusiasm, confidence, satisfaction, and attention indicators. The hypothesis was tested with SPSS through a paired sample T-Test. The study results showed a significance value of .000> 0.005, concluding that the problem-based learning model with animation media effectively increases students’ learning motivation. Based on the results of this research, it is recommended that teachers and educators use student-centered learning models, such as problem-based learning, to increase students’ learning motivation. In addition, it is necessary to develop programs to increase students’ awareness and confidence to improve their academic achievement.
Keterampilan proses sains dalam konteks project praktikum sederhana berbasis etnokimia: Sebuah telaah literatur Abu, St Hayatun Nur; Rahman, Nurul Aulia; Mauraji, Ilham S. W
Arfak Chem: Chemistry Education Journal Vol. 8 No. 1 (2025): Arfak Chem
Publisher : Universitas Papua, Manokwari, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/accej.v8i1.913

Abstract

Science process skills are essential aspects of learning aimed at shaping students capable of thinking critically and analytically and applying scientific concepts in real-life situations. However, various studies have shown that these skills remain moderate to low in Indonesia. This condition is attributed to learning approaches that are still theoretical, limited laboratory activities, and inadequate lab facilities. A contextual and practical learning strategy is needed to address these challenges, one of which is through simple project-based practicums integrated with ethnochemistry. Ethnochemistry, a branch of ethnoscience, enhances students’ motivation to learn chemistry and deepens their understanding of local culture. This study employs a literature review method involving eight national and international journal articles. The results indicate that this approach is practical in developing science process skills. Simple project-based learning incorporating local values through ethnochemistry presents a promising alternative to improving the quality of science education in schools.
Transformasi tes diagnostik two tier ke four-tier berbasis representasi jamak pada konsep atom dan molekul Sukaria, Muhammad Ikhsan
Arfak Chem: Chemistry Education Journal Vol. 8 No. 1 (2025): Arfak Chem
Publisher : Universitas Papua, Manokwari, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/accej.v8i1.921

Abstract

This study aims to transform the two-tier diagnostic test instrument into a four-tier one, determine the validity, reliability, and characteristics of the test items to diagnose misconceptions that occur in the concept of atoms and molecules. This study is a development research using the ADDIE model. This development model consists of 5 stages: 1) Analyse, 2) Design, 3) Develop, 4) Implementation, and 5) Evaluation. The four-tier diagnostic test is a refinement of the two-tier test, which only consists of answers and reasons. The addition of a two-tier to the four-tier diagnostic test includes the level of confidence that indicates the accuracy of the answer choices and the reasons for choosing the answer in tier I. The test items are developed based on multiple representations to make it easier for students to understand the main questions. The study subjects were junior high school students in grade IX who had studied the material on atoms, molecules and ions. The instruments produced include grids, instructions for working on the test, test questions, answer keys, scoring guidelines, and guidelines for interpreting the results. Validity testing by expert validators showed that the developed instrument was valid. The reliability of the developed test was 0.87. Analysis of the test results found five profiles of understanding of the concepts tested: scientific conception, misconception, lack of knowledge, false positive, and false negative from the material tested. The results of applying the four-tier diagnostic test instrument showed that 36.98% experienced misconceptions in the concept of atoms and 34.97% in the concept of molecules. Based on these findings, it can be concluded that the four-tier diagnostic test developed can identify misconceptions in the concepts of atoms and molecules
Analysis of the attitudes of generation z prospective science teachers toward the chemistry virtual laboratory Qudratuddarsi, Hilman; Rahmah, Nur; Indriyanti, Nor; Jumriani; Munawwarah
Arfak Chem: Chemistry Education Journal Vol. 8 No. 1 (2025): Arfak Chem
Publisher : Universitas Papua, Manokwari, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/accej.v8i1.922

Abstract

Virtual laboratories are technological innovations that allow users to conduct chemistry experiments interactively without space, time, or material constraints. This study aims to analyze the attitudes of Generation Z prospective science teachers toward using virtual laboratories in chemistry learning by integrating the Theory of Planned Behaviour (TPB) and the Unified Theory of Acceptance and Use of Technology 2 (UTAUT2). A quantitative survey method was applied, involving 83 student respondents. The instrument was a questionnaire that measured performance expectancy, effort expectancy, social influence, facilitating conditions, hedonic motivation, habit, attitude, perceived behavioral control, and behavioral intention. The findings revealed a significant positive correlation between all independent variables, behavioral intention, and virtual laboratory usage. Habit and perceived behavioral control emerged as the most influential factors. This study provides valuable insights for developing strategies to integrate virtual laboratories into science teacher education based on Generation Z’s technological preferences.

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