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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
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Student Perceptions of Science Subjects at State Vocational Schools in Central Lombok Regency Azizi, Asrorul; Jufri, A. Wahab; Sarjan, M.; Ariansani, Yunita; Rokhmat, Joni; Sukarso, AA
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.v11i6.8816

Abstract

Vocational High School (SMK) is an education that prepares students to become professionals according to their program of expertise. In addition to learning science in vocational education subjects, which is something new, the previous vocational subject curriculum did not study science. The purpose of this study was to describe students' perceptions of science learning at State Vocational High School (SMKN) 1 Praya, SMKN 1 Pujut , and SMKN 1 West Praya. This research includes descriptive research. The sample in this study was 20% of the tenth grade students of Paiwisata Vocational High School in Central Lombok district, totaling 37 students SMKN 1 Praya, 25 students of SMKN 1 Pujut, and 26 students of SMKN 1 West Praya . Sampling was done by simple random sampling, and the instrument used for data collection was a questionnaire. The data analysis technique used is percentage. Students' Perceptions of Research Results in Science Lessons show a percentage of 74.02% with sufficient criteria. It can be concluded that students' perceptions of learning science meet sufficient criteria.
The Effectiveness of Interactive E-Modules as Learning Media to Train Visual Spatial Intelligence in Chemical Bond Material Fatmawati, Ria; Sukarmin, Sukarmin
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.v12i3.8940

Abstract

This study aims to determine the effectiveness of interactive e-module that train students' visual intelligence on chemical bond material. Chemical bond is one of the high school chemistry materials that has basic concepts that must be mastered in order to understand other chemistry topics and abstracts require the ability to understand what must be stimulated. This study was compiled based on the 4D research and development (R&D) model. The subjects and population of this study were students of class XI IPA at SMAN 12 Surabaya. The effectiveness of the review of cognitive domain tests and spatial visual intelligence tests before and after the use of a 3D visualialization base interactive e-module. The analysis of this study used N-gain and normality statistical tests until the data were normally distributed. The effectiveness of the media was stated to be very effective with an N-Gain score on the cognitive test of 0.8 in the high category and the spatial visual intelligence test of 0.8 in the high category which shows the relationship between cognitive domain tests and visual spatial tests can improve understanding of chemical bond material. The results of the research show that it is feasible to implement
Development of Domia Card (Domino Chemistry) as Evaluation Media of Mol Concept Phikly, Anastasius Khristozolla; Harun, Andi Ifriany; Melati, HUsna Amalya
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.v11i6.9188

Abstract

The level of achievement of students at State Senior High School (SMAN) 1 Putussibau in the material of the mole concept only reached 20%, and this figure cannot even depict the true potential of students in understanding the mole concept due to indications of cheating in every monotonous evaluation. DOMIA (Chemical Domino) was developed to address the problem of a lack of variation in evaluations while also reducing the incidence of student cheating in the evaluation process. DOMIA was developed with the R&D principle using the ADDIE model, and each process will be revised according to needs and field findings. The development of DOMIA took place after the needs analysis process through direct interviews with subject teachers and several randomly selected students. The developed DOMIA was then validated to test the level of feasibility and reliability based on Guilford indicators as a reference in assessment. DOMIA has Kr = 0.97 and Ks = 0.947, indicating that DOMIA is highly valid and very reliable, making it ready for implementation and serving as a new evaluation tool that has not existed in the chemistry subject before.
Pengembangan VOLTA (Video Lagu Teori Kimia) pada Materi Teori Asam Basa dengan Strategi Chunking Winel, Khezya Merary; Rasmawan, Rahmat; Ulfah, Maria; Junanto, Tulus; Harun, Andi Ifriany
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.v11i6.9200

Abstract

Pembelajaran kimia, yakni materi asam basa, dinilai sulit bagi siswa. Permasalahan ini ditemukan mengacu pada wawancara kepada guru dan siswa SMAN 2 Nanga Pinoh. Untuk mengatasi hal ini, media pembelajaran yang membantu siswa memahami dan mengingat materi, sesuai dengan karakteristik siswa sangatlah diperlukan. Tujuan penelitian ini yaitu untuk menghasilkan produk berupa VOLTA (Video Lagu Teori Kimia) pada Materi Teori Asam Basa dengan Strategi Chunking. Metode yang terapkan yakni penelitian dan pengembangan dengan model ADDIE yang terdiri dari tahap Analysis, Design, Development, Implementation, dan Evaluation. Penelitian ini hanya dilakukan hingga tahap Development. Video Lagu Teori Kimia pada materi Teori Asam Basa yang diujicobakan kepada siswa kelas XII SMA Negeri 2 Nanga Pinoh yang telah mempelajari materi teori asam basa merupakan subjek penelitian ini. Alat pengumpulan data berupa lembar penilaian kelayakan dan angket respon siswa. Penelitian ini menghasilkan media VOLTA (Video Lagu Teori Kimia) pada materi teori asam basa. Hasil validasi produk dari aspek materi dan media serta musik, masing-masing memperoleh skor 94,98% dan 96,08% sehingga sangat layak untuk digunakan. Hasil angket respon siswa pada uji respon awal dan utama mencapai rata-rata 89,09% dan 93,63% dengan kategori sangat baik. Disimpulkan bahwa VOLTA (Video Lagu Teori Kimia) pada materi teori asam basa dengan strategi chunking sangat layak digunakan sebagai media pembelajaran.
Preliminary Study: Study of Supporting Facilities for Natural Science Mini Project Practicum Models of Junior High Schools in Mataram Ardiansyah, Bakhtiar; Ramdani, Agus; Hakim, Aliefman; Makhrus, Muh
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.v11i6.9420

Abstract

This study aims to describe the supporting facilities for the Natural Science Mini Project Practicum (PIMPA) model of learning from the availability of tools and chemicals as well as books or literature available in SMP throughout Mataram City. This research was conducted in three schools spread outside the urban areas of Mataram City, especially those located close to the tourism area of Mataram City, namely: SMPN 11 Mataram, SMPN 17 Mataram, and SMPN 21 Mataram. The research subjects were laboratories and libraries, and the research objects were laboratory support facilities. The form of activity carried out is the recording of documents (inventory) of laboratory equipment and their use in science practicum activities. The data from this study were analyzed descriptively qualitatively. The results of this study indicate that the laboratory carrying capacity in the PIMPA model is the availability of laboratory equipment for science practicum activities at SMPN 11 Mataram is 77.27% (adequate); SMPN 17 Mataram available 77.27% (adequate); and SMPN 21 Mataram available 72.72% (adequate). 
The Influence of Adding Glycerol and Spirulina on The Characteristics of Starch-Based Bioplastics Film from Potato Peel Waste Ni'mah, Kamilah Pathun; Hakim, Muhammad Fahmi; Julia Putri, Leggy Doriyanti; Rahmawati, Fira
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.v11i6.9549

Abstract

The development of bioplastic films is one of the efforts to reduce plastic waste. The polymer used as the basic material for making bioplastic films is starch. Potato peel waste can be repurposed by extracting its starch content. This research has the purpose to investigate the influence of adding glycerol and spirulina on the characteristics of bioplastic films made from potato peel starch, and to ascertain the optimum composition of raw materials. Bioplastics were produced by casting method from potato peel starch with variations of glycerol and spirulina. The bioplastic composition in this research includes K0 (0 ml glycerol and 0 grams spirulina), K1 (2.5 ml glycerol and 0.3 grams spirulina), K2 (1.25 ml glycerol and 0.3 grams spirulina), K3 (2.5 ml glycerol and 0.15 grams spirulina), and K4 (1.25 ml glycerol and 0.15 grams spirulina). The characteristics of bioplastic films include thickness testing, tensile strength, elongation at break, and degradation. The results from the characterization of bioplastic films indicate that the addition of glycerol and spirulina is inversely proportional to the tensile strength produced, meaning it decreases. However, the addition of glycerol and spirulina is directly proportional to the percentage of elongation produced, meaning it increases. The addition of spirulina has an impact on the degradation time of bioplastic films. The optimal raw material ratio in this research is found in sample K4, with a tensile strength value of 23.038 MPa, elongation at break of 4.385%, thickness of 0.1367 mm, and complete degradation occurring on the sixth day.
Design of Augmented Reality Integrated Learning Applications on Acid and Base Subject Material for F Phase Students Rahmadani, Sri; Guspatni, Guspatni
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.v11i6.9551

Abstract

The aim of this research is to create integrated augmented reality learning media in the form of an application that focuses on the acid base material in the F phase or senior high school phase. Along with the development of the world of education, various kinds of new learning media have emerged. One of the interesting technologies that can currently be developed on Android is Augmented Reality (AR). Augmented Reality is considered one of the most advanced technologies in virtual reality research and is effective as a learning medium, especially chemistry. Augemented Reality is a technology that combines the real world with a computer-generated virtual world so that the boundaries between the two worlds are very minimal. Because of its advantages, AR can be used to create learning applications that can support the teaching and learning process. One lesson that can utilize this technology is chemistry learning about acids and bases. This application was created with Blender 3D software to create 3D acid base objects, Easy AR and Unity 3D to build applications. This media design was adopted by the Plomp development media. Where the design of this media is in accordance with the needs of schools which expect learning media to contain animation and be guided by questions that can guide students in discovering concepts. It is hoped that this learning application can be used at school and outside school as a support in learning chemistry, especially acids and bases.
The Effect of Different Solvents on Total Tannin Content of Cengkodok (Melastoma malabathricum) Leaf Extracts Masriani, Masriani; Parawansa, Khofifah Aditha; Sasri, Risya; Sapar, Ajuk; 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.v11i6.9774

Abstract

The use of synthetic dyes as color enhancers or generators has caused various environmental and health problems. Plant tannin biomordants offer an alternative solution to address these issues. The sample used in this study were Cengkodok (M. malabathricum) plants that grow wild in places that get enough sunlight such as shrubs. Phytochemical screening on various parts of the cengkodok plant revealed that the highest tannin content is found in the leaf. However, until now there has been no scientific evidence that presents differences in tannin levels in cengkodok leaf with various types of solvents. This study aims to determine the yield and total tannin content of cengkodok leaf extract obtained through maceration process using methanol, ethanol, and ethyl acetate solvents. The extract yield was determined by comparing the weight of the dry extract with the powdered cengkodok leaf material. The total tannin content was analyzed using UV-Vis spectroscopy at a wavelength of 755.8 nm with Folin-Ciocalteu reagent and sodium carbonate. Tannic acid was used as a reference. The research results showed that the yield values for Cengkodok leaf extracted with methanol, ethanol, and ethyl acetate were 5.05%, 4.72%, and 1.59%, respectively. The total tannin content of cengkodok leaf extracts with methanol, ethanol, and ethyl acetate solvents was 0.47%±0.04, 0.37%±0.01, and 0.19%±0.04, respectively. Based on this research, it can be concluded that methanol is the most effective solvent in extraction and determination of total tannin content of Cengkodok leaf extracts.
Synergetic Effect of Potassium Iodide and Miana (Coleus scutellaroides (L.) Benth.) Leaves Extract on Mild Steel in HCl Medium Putri, Sanaq Elfira; Gusniardi, Vira Anggita; Suryati, Suryati; Emriadi, Emriadi
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.v11i6.9810

Abstract

Due to its low carbon content, mild steel is prone to corrosion. Therefore, corrosion inhibitors are needed to decrease the corrosive rate of mild steel. This research aims to investigate the influence of adding potassium iodide to miana leaves extract (Coleus scutellaroides (L.) Benth.) (MLE) on the corrosion rate of mild steel, identify the type of adsorption, synergistic effects and characterize the surface of mild steel both before and after the addition of potassium iodide. The weight loss method is employed to test the corrosion rate, and the type of adsorption is identified through thermodynamic calculations. Surface characterization is evaluated using Fourier Transform Infrared (FTIR) and Scanning Electron Microscopy (SEM). As potassium iodide is added, the weight loss findings show an increase in inhibitory efficiency. When potassium iodide concentration was 0.4 g/L and temperature was 30°C, the maximum inhibitory efficiency was attained, which was 92.784%. Characterization analysis indicates the interaction between potassium iodide and MLE with the surface of mild steel. This research has not been explored yet and is expected to provide information on the use of potassium iodide and MLE as environmentally friendly corrosion inhibitors.
Penerapan Model Pembelajaran Team Based Learning untuk Meningkatkan Keterampilan Abad 21 bagi Mahasiswa Calon Guru Kimia Junanto, Tulus; Sartika, Rody Putra
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.v11i6.9832

Abstract

Pendidikan abad 21 memerlukan keterampilan dunia nyata yaitu komunikasi, kolaborasi dan berfikir kritis. Model pembelajaran Team Based Learning (TBL) memberikan banyak kesempatan kepada mahasiswa untuk mengembangkan kemampuan bekerjasama. Tujuan yang ingin dicapai dalam penelitian ini adalah a) mendeskripsikan penggunaan model pembelajaran TBL untuk meningkatkan keterampilan abad 21 bagi mahasiswa calon guru kimia, b) mendiskripsikan prosedur pelaksanaan kegiatan model pembelajaran TBL untuk meningkatkan keterampilan abad 21 bagi mahasiswa calon guru kimia. Metode penelitian ini adalah jenis penelitian kualitatif dengan pendekatan deskriptif. Hasil penelitian adalah a) implementasi model pembelajaran TBL dapat meningkatkan keterampilan abad 21 bagi mahasiswa calon guru kimia dengan cara berkolaborasi, aktif berkomunikasi, berpikir kritis dan kreatif selama proses pembelajaran, b) prosedur pelaksanaan kegiatan model pembelajaran TBL untuk meningkatkan keterampilan abad 21 bagi mahasiswa calon guru kimia yaitu pra-kelas, Readiness Assurance Process (RAP), Application of Course Concepts , instructor feedback.

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