cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
jkk.hydrogen@gmail.com
Phone
-
Journal Mail Official
jkk.hydrogen@gmail.com
Editorial Address
Jln. Pemuda No. 59A Mataram
Location
Kota mataram,
Nusa tenggara barat
INDONESIA
Hydrogen: Jurnal Kependidikan Kimia
Published by Universitas Pendidikan Mandalika
ISSN : 23386487     EISSN : 26563061     DOI : Prefix 10.33394
Core Subject : Science, Education,
Chemistry Education
Hydrogen: The Chemistry Education Journal published by the Chemistry Education Study Program which contains articles raised from the results of conceptual research and studies in chemistry and chemistry education including education and learning, device development, media and learning models.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 618 Documents
 23   24   25   26   27 
Clean Water Quality Analysis based on Chemical Parameters at the Taha Qur'an Education Park Bima Regency Azwaruddin, Azwaruddin; Abdullah, Taufik; Wahyuningsih, Sri
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 2 (2024): April-May 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i2.11321

Abstract

Unclean water is the cause of skin diseases. Skin diseases are included in water washed diseases which are influenced by the environment and human behavior. The water source at the Taha Qur'an Education Park is a drilled well, this water source is close to the residents' livestock pens which can be a source of pollution. The aim of the research is to determine the quality of clean water in the Taha Qur'an Education Park. Type of qualitative descriptive research. The population in this study was all the water taps in the Taha Qur'an Education Park. The number of samples was 2 samples. Based on Minister of Health Regulation number 32 of 2017, the results of water chemistry quality tests from the results of pH measurements on samples from Tap A were 7.5 and on samples from Tap B were 7.5, which is based on Regulation of the Minister of Health of the Republic of Indonesia Number 32 of 2017. Quality standard values for pH it is 6.5-8.5, while for checking Detergent levels in clean water the results obtained for tap A samples are 0.03 Mg/L and for Tap B samples it is 0.02 Mg/L, which is based on the Minister of Health Regulation Republic of Indonesia Number 32 of 2017 The quality standard value for Detergents is 0.05 Mg/L. It is hoped that the management of the Taha Qur'an Education Park will continue to maintain the quality of clean water in the Taha Qur'an Education Park, Bima Regency.
The Effect of Different Extraction Methods on Total Tannin Content of Methanol Extract of Simpur Air Leaves (Dillenia suffruticosa) Sri Wahyuni; Masriani Masriani; Risya Sasri; Ajuk Sapar; Erlina Erlina; Ersando Ersando
Hydrogen: Jurnal Kependidikan Kimia Vol 11, No 6 (2023): December 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v11i6.9897

Abstract

The use of metal mordants in fabric dyeing can harm the environment and health, so it is necessary to look for natural mordants that are more environmentally friendly. The utilization of Simpur Air leaves (Dillenia suffruticosa) as a biomordant is one of the efforts to produce a more environmentally friendly tannin mordant. D. suffruticosa has been reported to contain tannin compounds in all parts of the plant. However, scientific evidence of differences in the total tannin content of methanol extracts of D. suffruticosa leaves with various extraction methods have not been found so far. This study aims to determine the effect of different extraction methods on the yield value and total tannin content of methanol extracts of D.suffruticosa leaves using UV-Vis spectrophotometric method at a wavelength of 755.8 nm with Folin Ciocalteau reagent. D. suffruticosa leaves are extracted by using three methods, namely maceration, soxhletation and reflux. Tannic acid is used as a comparator. The results show that the yield value of D. suffruticosa leaves extracted by maceration, soxhletation and reflux methods were 8.35%; 12.26%; and 25.24%, respectively. The total tannin content of methanol extract of D. suffruticosa leaves with maceration method is 0.15% ± 0.007; soxhletation is 0.18% ± 0.007 and reflux is 0.21% ± 0.016.  Based on the results of the data analysis, the significance value <0.05 was obtained. It can be concluded that the extraction method affects the yield value and total tannin content of methanol extract of D. suffruticosa leaves.
Application of Digital Literacy to Chemistry Learning Outcomes of High School Students Djarwo, Catur Fathonah; Suaka, Irwandi Yogo; Safitri, Ima Nur; Putri, Intan Mentari
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 1 (2024): February 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i1.10864

Abstract

This research examines the impact of implementing digital literacy on chemistry learning for Muhammadiyah High School students in Jayapura City. In today's digital era, technology plays an important role in education, and digital literacy is an increasingly relevant skill. The data collection technique in this research was carried out using test techniques. The research results show that the use of digital technology in chemistry learning also contributes positively to student learning outcomes. This can be seen in the posttest scores obtained by the average student score of 67.86 in the experimental group and 77.68 in the control group. These findings provide empirical support for the importance of digital literacy in modern education.
Development of LKPD Based on Project Based Learning Stoichiometry Material by Utilizing Organic Waste for Phase F SMA/MA Rahmad, Nafisah Yulia; Suryani, Okta
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 3 (2024): June-July 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i3.12443

Abstract

The project-based learning model is one of the learning models that supports the application of concepts in everyday life. From the results of the questionnaire given, Project Based Learning-based LKPD is needed and it is very important to compile Project Based Learning-based stoichiometry LKPD in supporting learning in the era of an independent curriculum. The type of research used is development research or Educational Design Research (EDR) with the Plomp development model by Tjeerd Plomp. The research was conducted at SMA Negeri 4 Padang with research subjects namely 3 Chemistry Lecturers FMIPA UNP, 2 SMA Negeri 4 Padang teachers and 9 students of class XI SMA Negeri 4 Padang. The object of research is LKPD based on project-based learning on stoichiometry material by utilizing organic waste for phase F SMA / MA. In terms of research, Plomp as a development study has 3 main stages, namely the initial research stage, the prototype formation stage, and the assessment stage. The results showed that all aspects assessed in each component of the validation of project-based learning-based LKPD on stoichiometry material by utilizing organic waste for phase F SMA / MA obtained an average V value of 0.92 with a valid category. The results are very practical for teachers with an average practicality of 91% and practicality for students is very practical with an average practicality of 89%. Based on the results of the study, it was found that the development of LKPD based on project-based learning on stoichiometric material by utilizing organic waste for phase F SMA / MA was developed valid and practical.
Deskripsi Disiplin dalam Pembelajaran Kimia Siswa MAN 1 Sintang Yunita Puspasari; Tulus Junanto; Andi Ifriany Harun; Eny Enawaty; Rahmat Rasmawan
Hydrogen: Jurnal Kependidikan Kimia Vol 11, No 5 (2023): October 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v11i5.8996

Abstract

Disiplin merupakan salah satu unsur penting dalam karakteristik pembelajaran kimia. Hal tersebut membuat guru membutuhkan informasi tentang kondisi kedisiplinan siswa sehingga dapat membantu guru dalam memberikan tindakan yang tepat untuk meningkatkan karakter disiplin siswa. Tujuan penelitian ini untuk mendeskripsikan kedisiplinan dalam pembelajaran kimia siswa MAN 1 Sintang. Metode penelitian yang digunakan adalah deskriptif kualitatif dengan pendekatan studi kasus. Subjek penelitian ini adalah siswa kelas XI MIA 1 MAN 1 Sintang. Prosedur pengumpulan data yaitu pertama peneliti memberikan angket kepada siswa kemudian hasilnya dianalisis dan disajikan dalam bentuk tabel dan diagram, kedua peneliti melakukan observasi dan wawancara sebagai triangulasi. Instrument penelitian yang digunakan adalah angket dan pedoman observasi. Angket menggunakan skala likert dan hasilnya analisis dalam bentuk persentase.Hasilnya siswa sudah menunjukkan sikap disiplin selama pembelajaran kimia. kategori disiplin siswa yaitu sebanyak 65% siswa masuk dalam kategori sangat kuat, 32% siswa masuk dalam kategori kuat dan 3% siswa masuk dalam kategori cukup.
Creative Thinking Skills in Colloidal Material of 11th grade Science Students at SMAN 1 Mempawah Hilir Fitri, Sari Nur; Junanto, Tulus; Sasri, Risya; Hairida, Hairida; Rasmawan, Rahmat
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 1 (2024): February 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i1.10367

Abstract

The industrial revolution 4.0 makes us develop into adaptive humans. 21st century skills, that involves thinking critically and inventiveness, abilities to communicate and teamworks, are needed to adapt to all technological changes. Among the four 21st century skills, creative thinking skills are needed to develop innovative ideas in answering problems in the learning process. The variable of this research is students’ creative thinking skills. The aspects studied consist of originality, fluency, flexibility, and elaboration. The research process was conducted with descriptive quantitative using a sample of 35 students of class XI IPA at SMA Negeri 1 Mempawah Hilir. The research instruments used were creative thinking test questions in the form of descriptions and interview guidelines. The results of data analysis stated that students’ creative thinking skills were included in the insufficient category with a percentage of 74,29% of the sample. The average value in originality is 42,68%, while the aspects of fluency, flexibility, and elaboration have the same average of 36,78%. Several factors cause the low level of students’ creative thinking skills; namely students still memorize the material in the book, lack of learning experience, students tend to give answers as they are because they think they will get a score even though they only write a few answers, and another factor is that students lack focus when working on test questions.
The Influence of the Anchored Instruction Model assisted by PHET on Students' Problem Solving Abilities Dewi, Bq Intan Patmala; Verawati, Ni Nyoman Sri Putu; Hikmawati, Hikmawati; Rahayu, Satutik
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 3 (2024): June-July 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i3.12179

Abstract

Abstract This research aims to test the effect of the anchored instruction model assisted by PhET on students' physics problem solving abilities in optical instruments at SMAN 1 Sukamulia. The type of research used is quasi experimental with a pretest-posttest control group design. The population is all students in class XI MIPA SMAN 1 Sukamulia, totaling 52 people. The research sample was taken using a saturated sampling technique and class XI MIPA 1 was selected as the experimental class and class XI MIPA 2 was selected as the control class. The experimental class was treated with an anchored instruction model assisted by PhET and the control class was treated with a direct learning model. The research instrument consists of a problem solving ability test (KPM) in the form of a description test of 10 questions taking into account validity, reliability, level of difficulty and differentiability of questions. The KPM pre-test and post-test data were tested for normality and homogeneity, then continued with hypothesis testing using the twin sample t-test. Hypothesis test results obtained that the calculated t value was greater than the t table, so Ha was accepted, so that the PhET-assisted anchored instruction learning model had an effect on ability. Physics problem solving for students at SMAN 1 Sukamulia.
The Presence of Microplastics in Shellfish: A Review Aura, Selfi Monica; Deswati, Deswati; Emriadi, Emriadi
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 1 (2024): February 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i1.10820

Abstract

This study aims to find the presence of microplastics in Shellfish through the literature review method of several studies conducted. The increase in plastic pollution in water systems since the 1950s has become a significant problem worldwide due to the slow decomposition rate. Microplastics, mainly primary and secondary, can accumulate in marine organisms such as Shellfish and enter the food chain, which is a concern for humans. Shellfish, especially M. galloprovincialis, can be used as bioindicators and bioremediation tools to tackle microplastic pollution. Microplastics are a severe problem in the world's oceans, especially in marginal and densely populated coastal areas. Marine organisms like Shellfish contain microplastics, which can cause physical damage and disrupt the immune system. Mytilus edulis clams and Crassostrea gigas oysters are the most consumed species with significant microplastic content. Research has also shown the presence of microplastics in Mytilus chilensis in the Gulf of Ushuaia, South America, with fibers and fragments being the most common types. Microplastics are also found in wild mussels in Tunisia, with the estimated annual dietary intake of microplastics by Tunisians through wild mussel consumption amounting to 4.2 particles per capita per year. Mussels of the genus Mytilus were proposed as guardian organisms to monitor microplastic pollution.
Characterization of Barium Hexaferrite and Iron Sand as Microwave Absorbing Materials Naibaho, Yeni P.S; Humaidi, Syahrul; Rianna, Martha; Diana, Linda
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 2 (2024): April-May 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i2.11776

Abstract

This research aims to analyze the characteristics of Barium Hexaferite and iron sand as microwave absorbing materials, their influence on microwave absorption properties, and the frequency range of waves produced by these materials. The research method used is the Co-Precipitation method. Dissolve barium hexapherite and iron sand in distilled water with the appropriate mass ratio. The results of this study show that the synthesis of iron sand and barium hexapherite material produces a single phase material. The single phase material is shown through X-ray diffraction pattern data, namely iron sand and barium hexapherite, namely hematite and barium hexapherite. Iron sand and barium hexapherite materials are characterized using EDS which shows a composition that is close to stoichiometry. Observations using VNA show that iron sand and barium hexapherite materials are able to absorb electromagnetic waves at a radar wave frequency of 11.1 GHz, which is -25.64 dB.
Integrasi Mitigasi Bencana Global Warming pada Materi Pembakaran Hidrokarbon melalui Pendekatan RBL-STEAM Annida Nurul Shabrina; Bhakti Karyadi
Hydrogen: Jurnal Kependidikan Kimia Vol 11, No 6 (2023): December 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v11i6.9911

Abstract

AbstractThe primary objective of this paper is to address the mitigation of disasters resulting from climate change and global warming. Such disasters are the result of increased greenhouse gas emissions, primarily caused by human activities like deforestation and the use of fossil fuels. To analyze the concept of hydrocarbon combustion from basic competencies (KD) 3.3 and 4.3 of chemistry class XI, we employed a qualitative descriptive method supported by a literature review. The paper investigates the relationship between climate change, the greenhouse effect, the carbon cycle, and their effects on the environment and health. Furthermore, it proposes a learning design that combines the Research-Based Learning (RBL) model with the STEAM approach to enhance students' comprehension of climate change, the consequences of hydrocarbon combustion, and emergency response measures. One of the highlighted learning strategies is the creation of an interactive and engaging mini park mockup to facilitate student understanding. The use of technology, specifically machine learning, is recommended for decision making in global warming disaster mitigation. This paper stresses the significance of integrating chemistry learning for knowledge and skills development in KD 3.3 and 4.3, and for understanding global warming and disaster mitigation efforts. The goal is to provide students with science literacy skills as well as the ability to identify concrete actions in reducing the negative impacts of climate change.

Page 25 of 62 | Total Record : 618

 23   24   25   26   27 

Filter by Year

2013 2025


Reset
Filter By Issues
All Issue Vol. 13 No. 5 (2025): October 2025 Vol. 13 No. 4 (2025): August 2025 Vol. 13 No. 3 (2025): June 2025 Vol. 13 No. 2 (2025): April 2025 Vol. 13 No. 1 (2025): February 2025 Vol 13, No 1 (2025): February 2025 Vol 12, No 6 (2024): December 2024 Vol. 12 No. 6 (2024): December 2024 Vol 12, No 5 (2024): October 2024 Vol. 12 No. 5 (2024): October 2024 Vol. 12 No. 4 (2024): August 2024 Vol 12, No 4 (2024): August 2024 Vol 12, No 3 (2024): June-July 2024 Vol. 12 No. 3 (2024): June-July 2024 Vol. 12 No. 2 (2024): April-May 2024 Vol 12, No 2 (2024): April-May 2024 Vol 12, No 1 (2024): February 2024 Vol. 12 No. 1 (2024): February 2024 Vol 11, No 6 (2023): December 2023 Vol. 11 No. 6 (2023): December 2023 Vol 11, No 5 (2023): October 2023 Vol 11, No 4 (2023): August 2023 Vol 11, No 3 (2023): June 2023 Vol 11, No 2 (2023): April 2023 Vol 11, No 1 (2023): February 2023 Vol 10, No 2 (2022): Hydrogen: Jurnal Kependidikan Kimia Vol 10, No 1 (2022): Hydrogen: Jurnal Kependidikan Kimia Vol 9, No 2 (2021): Hydrogen: Jurnal Kependidikan Kimia Vol 9, No 1 (2021): Hydrogen: Jurnal Kependidikan Kimia Vol 8, No 2 (2020): Hydrogen: Jurnal Kependidikan Kimia Vol 8, No 1 (2020): Hydrogen: Jurnal Kependidikan Kimia Vol 7, No 2 (2019): Hydrogen: Jurnal Kependidikan Kimia Vol 7, No 1 (2019): Hydrogen: Jurnal Kependidikan Kimia Vol 6, No 2 (2018): Hydrogen: Jurnal Kependidikan Kimia Vol 6, No 1 (2018): Hydrogen: Jurnal Kependidikan Kimia Vol 5, No 2 (2017): Hydrogen: Jurnal Kependidikan Kimia Vol 5, No 1 (2017): Hydrogen: Jurnal Kependidikan Kimia Vol 4, No 2 (2016): Hydrogen: Jurnal Kependidikan Kimia Vol 4, No 1 (2016): Hydrogen: Jurnal Kependidikan Kimia Vol 3, No 2 (2015): Hydrogen: Jurnal Kependidikan Kimia Vol 3, No 1 (2015): Hydrogen: Jurnal Kependidikan Kimia Vol 2, No 2 (2014): Hydrogen: Jurnal Kependidikan Kimia Vol 2, No 1 (2014): Hydrogen: Jurnal Kependidikan Kimia Vol 1, No 2 (2013): Hydrogen: Jurnal Kependidikan Kimia Vol 1, No 1 (2013): Hydrogen: Jurnal Kependidikan Kimia More Issue