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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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Pengaruh Model PBL Berbasis Etnosains Terhadap Kemampuan Berpikir Kreatif Siswa Pada Materi Hidrolisis Garam Indah Syafitri; Haryanto Haryanto; Fuldiaratman Fuldiaratman; Muhammad Rusdi; Afrida Afrida; Yusnidar Yusnidar
Hydrogen: Jurnal Kependidikan Kimia Vol 10, No 2 (2022): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v10i2.5723

Abstract

The purpose of this study is to see how the ethnoscience-based PBL model affects students' creative thinking skills on salt hydrolysis material ataAl-Falah iIslamic HighhsSchool iin jJambi.aResearchhdesign used in this study is Quasi Experiment with Non Equivalent Control Group Design. There were two sample classes in this study: class XI IPA 1 as an experimental class using an ethnoscience-based PBL model and class XI IPA 3 as a control class using a PBL model. This study's instrument included an essay test, an observation sheet for student activities on model application, and an observation sheet for creative thinking skills. The t-test was used to test hypotheses about differences in students' creative thinking abilities. The data analysis revealed that the ethnoscience-based PBL model had an impact on students' creative thinkingabilities, as evidenced by an increase in the average results of the pretest and posttest, namely 52.27% - 71.59% with a difference of 19.29% in the experimental class. control 50.76% - 63.64% with a 12.88% difference Furthermore, theree is assignificantddifferencebbetween the experimental and control groups. According to the results of the t test with a significance level of = 5%, tcount = 1.76797 > ttable = 1.6819, indicating that the ethnoscience-based PBL model has an effect on sstudents' creativetthinking abilities. As a result, it is possibleeto concludeetthat theeethnoscience-based PBL model influences students' creative thinking abilities.
Pengembangan E-Modul Pemisahan Senyawa Fenolik dari Fraksi Simpur Air dengan Teknik Kromatografi Lapis Tipis (KLT) Preparatif Sebagai Sumber Belajar Kimia Bahan Alam Ersando Ersando; Rini Muharini; Ira Lestari; Rody Putra Sartika; Rahmat Rasmawan
Hydrogen: Jurnal Kependidikan Kimia Vol 10, No 2 (2022): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v10i2.5719

Abstract

The purpose of this study was to determine the E-Module of Natural Materials Chemistry based on a flipbook application with the material for Separation of Phenolic Compounds from the Simpur Air (Dillenia suffruticosa) Fraction  using a preparative Thin Layer Chromatography (TLC) technique. The research method used is a research and development method by applying the ADDIE model. The subject of this research is the E-module for Separation of Phenolic Compounds from the Simpur Air (D. Suffruticosa) Fraction using Preparative Thin Layer Chromatography (TLC). The research instrument used was assessment and data analysis using a Likert scale. The data collection technique used is an indirect communication technique by giving a questionnaire. The feasibility of the E-module was assessed by two material experts, three media experts, and two linguists. The final results are seen in the material aspect which is obtained 100%, the media aspect is obtained 100%, and the language aspect is obtained 100%. Thus, it can be locked that the E-Module of Natural Materials Chemistry based on a flipbook application with the material for Separation of Phenolic Compounds from the Simpur Air (D. suffruticosa) Fraction Using a preparative Thin Layer Chromatography (TLC) technique is very feasible.
Profil Kemampuan Technological Pedagogical Content Knowledge (TPACK) Guru Kimia SMA di Kalimantan Barat Erlina Erlina; Maria Ulfah
Hydrogen: Jurnal Kependidikan Kimia Vol 10, No 2 (2022): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v10i2.4469

Abstract

This study aims to determine the level of technological pedagogical content knowledge (TPACK) of High School Chemistry teachers. The method used is descriptive quantitative method. The participants involved in this study were 42 high school chemistry teachers from 42 different schools in Kalimantan Barat. The instrument used in this study is a questionnaire adapted from the TPACK Assessment developed by Schmidt, Baran, Thompson, Mishra, Koehler & Shin (2009) with 5 answer options with a Likert scale. Based on data analysis, the average TPACK ability score in each aspect is: for the TK aspect 75.03 with a good category; the average score on the CK aspect is 72.82 in the good category; the average score for the PK aspect; 76.12 in the good category; PCK aspect; 72.62 also in the good category; the TCK aspect; 71.43 in the good categor; in the TPK aspect; 75.71 in the good category; and in the last aspect, TPACK; an average score of 72.48 was obtained which is in the good category. Based on these findings, it can be concluded that chemistry teachers in Kalimantan Barat have a good TPACK abilities, thus those teachers properly use the technology in the teaching process. The range of correlation data shows a strong and very strong relationship with a positive correlation coefficient ranging from 0.691-0.931. This shows a significant correlation for each aspect of TPACK.
Kapasitas Adsorpsi Zat Warna Malachite Green dan Violet Dye Menggunakan Metal Organic Frameworks (Fe-BDC) Areski Febriani; Septika Amalia Umaro; Euis Nursa'adah; Mochammad Lutfi Firdaus
Hydrogen: Jurnal Kependidikan Kimia Vol 10, No 2 (2022): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v10i2.5220

Abstract

The presence of dye liquid waste from industry that is discharged into public drainage channels will cause environmental pollution, especially water ecosystems. The impact caused when exposed to waste such as health problems, such as allergies, skin irritation, cancer, and mutations in humans. The most widely used waste treatment method is adsorption. This method was chosen because it has high efficiency, easy, and cheap. The success of the adsorption method depends on the type of adsorbent used. One of the adsorbents that has a large adsorption capacity is metal organic frameworks. This study aims to determine the adsorption capacity using a sulvothermally synthesized Metal Organic Frameworks adsorbent using FeCl3.6H2O metal with terephthalic acid organic ligand. The dyes used as adsorbates are cationic malachite green (MG) and violet dye (VD) which are hazardous wastes from the textile industry in Bengkulu city. Determination of adsorption capacity is done by first determining the optimum conditions which include pH, contact time, adsorbent weight, and temperature. The optimum conditions for MG dye were at pH 5, at a mass of 2.5 mg, a contact time of 60 minutes, at a temperature of 30°C and a concentration of 50 ppm. While the VD dye was at a mass of 10 mg, a contact time of 40 minutes, pH 4, temperature 30°C and a concentration of 50 ppm. The adsorption capacity of MG and VD dyes were 625.00 mg/g and 384.61 mg/g.
Efisiensi Adsorpsi Metilen Biru Menggunakan Karbon Baggase Teraktivasi Husnul Hatimah; Dahlia Rosma Indah; Intan Kusuma Wardani
Hydrogen: Jurnal Kependidikan Kimia Vol 10, No 2 (2022): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v10i2.6410

Abstract

Lombok Island has a distinctive culture and produces handicraft products with cultural motifs such as traditional woven fabrics of the Sasak tribe. Dyeing of woven fabrics using natural and artificial dyes. For artificial dyes, one of which is methylene blue dye. Residual water or former dyeing in coloring is usually immediately discharged into the environment which causes pollution or hazardous waste for living things. The presence of dyes greatly affects the environment because of their high toxic effects, can cause allergies and skin irritation, and can cause gene changes and are carcinogenic. Based on these problems, processing is needed to reduce the pollutant substances that are generated. One of the technologies used is adsorption using a natural adsorbent that is efficient and easy to obtain, namely activated carbon baggase (bagasse). Bagasse carbon made through the pyrolysis stage (carbonation process) at a certain temperature can be used as an alternative adsorbent for the adsorption of pollutant dyes. This study aims to determine the characteristics and adsorption efficiency of methylene blue by activated carbon baggase. This study used experimental methods with gravimetric techniques, batch techniques, and samples were analyzed using Uv-Vis Spectrophotometry. A 10 mL sample of 10 ppm methylene blue was contacted with one gram of activated carbon baggase. The research was conducted in six stages. The first stage is to prepare activated carbon baggase adsorbents. The second, third, and fourth stages are optimization of the methylene blue solution. The fifth to the sixth stage is the measurement of methylene blue adsorption on activated carbon baggase adsorbents with variations in pH and contact time. Characteristics of activated carbon baggase in this study obtained a moisture content of 4.64% and an ash content of 5.37%. The optimum pH was obtained at pH 5 with an adsorption efficiency of 86.4%, while the optimum contact time was obtained at 80 minutes with an adsorption efficiency of 86.9%. From these results it can be concluded that the activated carbon baggase adsorbent is effective in adsorbing methylene blue so that it can be used to overcome pollution problems caused by dye waste.
Analisis Pengaruh Penambahan Eco-Enzyme Limbah Kubis Terhadap Pengawetan Buah Tomat Dengan Perbandingan Variasi Substrat Nur Laela; Andari Puji Astuti; Endang Tri Wahyuni Maharani
Hydrogen: Jurnal Kependidikan Kimia Vol 10, No 2 (2022): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v10i2.5708

Abstract

Cabbage is a vegetable that thrives in Indonesia. This type of vegetable is a vegetable that is not durable and prone to decay and produces organic waste waste from cabbage leaves which causes unpleasant odors that can pollute the environment. Waste from cabbage can be used as a base for making eco-enzyme fluids. Eco-enzyme liquid is a liquid produced from the fermentation of organic waste, this liquid has a reddish brown color, has a fresh and strong odor. This eco-enzyme contains propionate acid which can inhibit microorganisms in the decay process so that it can be used as a natural preservative. The purpose of this study was to analyze the effect of adding eco-enzyme solutions on tomato fruit preservation and to find out on what day of the tomatoes decomposed and changes in tomatoes that were not sprayed with eco-enzymes. This type of research is an experimental study using 2 types of substrate variations, namely by using the basic ingredients of making eco-enzyme liquid using palm sugar with cabbage waste (Variable 1) and sugar with cabbage waste (Variable 2). Based on the research results, it was found that the eco-enzyme liquid, palm sugar substrate was 60% and granulated sugar substrate was 40% and the most effective eco-enzyme liquid for natural preservatives in tomatoes is eco-enzyme using palm sugar. 
Korelasi antara Keterlaksanaan Model Treffinger Berbantuan iSpring Suite 8 dengan Kemampuan Berpikir Kreatif Erma Johar; syamsurizal syamsurizal; Afrida Afrida; Aulia Sanova
Hydrogen: Jurnal Kependidikan Kimia Vol 10, No 2 (2022): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v10i2.5734

Abstract

Students only listen and receive lessons from the teacher in online and offline learning activities. The Treffinger model is oneeof the learninggmodels that can help improve creative thinking skills during online or offline learning. The purpose of this study is to determineethe implementationnof the Treffinger model and its relationship to creativeethinkinggskills. This study used three syntaxes for each model: basic tools, process practice, and working with real problems. The study's subjects were 18 students from class XI IPA 4 SMAN 2 Jambi City, and the data sources were students, teachers, and student activities. Interviews, teachereobservation sheets, student observation sheets, and tests were used to collecttdataafor the study, which was then analyzed using qualitative descriptive techniques. The average value of the model's application by students at meetings 1, 2, and 3 is 36.94, 57.02, and 59.15, respectively, indicating an increase in implementation of this learning model. This is consistent with the test results of students' creative thinking abilities, which improve with each meeting, as evidenced by the average value of each successive meeting, which is as follows: 36.11, 46.11, and 48.33 The study concluded that there is there is a correlation between the implementation of the Treffinger model and the creative thinking ability of students in class XI IPA 4 SMAN 2 Jambi City.
Electronic-Supplement Kimiapedia dengan Pendekatan Literasi Sains pada Materi Hidrokarbon di SMA Negeri 10 Pontianak Eka Sofia; Rini Muharini; Ira Lestari; Rachmat Sahputra; Maria Ulfah
Hydrogen: Jurnal Kependidikan Kimia Vol 10, No 2 (2022): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v10i2.5343

Abstract

This study aims to determine the level of feasibility and response of students and educators to the e-supplement Kimiapedia with a scientific literacy approach on hydrocarbon material at SMA Negeri 10 Pontianak. This research uses research and development methods, and the research model is adopted from analysis, design, development, implementation, and evaluation, the stages carried out to the development stage. The feasibility level of the e-supplement chemistrypedia approach to scientific literacy on hydrocarbon material gets a value of 96% with a very feasible category which is the accumulation of the average validation of linguists, media and teaching materials experts and material experts. The limited-scale response test result gave students’ response value of 74% in which was categorized as a good category. Further bigger scale response test showed similar 75% in  good category. In addition, teacher response test showed very good-category in both value with 94,7% and 95.7%. This result implied that the material was acceptable and can be applied in chemistry learning. 
Pengembangan Handout Berbasis Guided Note Taking untuk Meningkatkan Minat Belajar pada Materi Elektrolit dan Nonelektrolit Fatria Dewi; Lutfi Praidha Amyarsita; Syamsurizal Syamsurizal
Hydrogen: Jurnal Kependidikan Kimia Vol 10, No 2 (2022): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v10i2.5747

Abstract

The research carried out has the aim ofknowing the level of student interest in learning by using handout teaching materials based on guided note taking in class X MIPA 1 SMAN 6 Jambi City in the 2021/2022 academic year. Interest in learning is still a problem for learning in schools because the lack of interest in student learning can cause learning to be less conducive and effective during the learning process. This research was conducted 2 tests, namely individual test and small group test. The measurement of interest in learning has 5 indicators that are measured objectively, namely initiative, earnest, enthusiastic, reflective and responsive thinking. The research data were obtained from interviews, expert validation sheets, teacher assessments, student responses and student interest assessments. The results of student responses to the individual test obtained a percentage of 73% which is included in the good category.
Multimedia Interaktif Menggunakan Articulate Storyline Untuk Meningkatkan Kemampuan Berpikir Kritis Siswa Pada Materi Larutan Penyangga Wafiqah Alvia Ramadhani; Syamsurizal Syamsurizal; Afrida Afrida
Hydrogen: Jurnal Kependidikan Kimia Vol 10, No 2 (2022): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v10i2.5763

Abstract

With the passage of time, it frequently raises issues in the teaching and learning process in the classroom, which is thought to be less effective because teachers are less able to adapt to the times they face.These problems can affect the quality of education in Indonesia, so solutions are needed to overcome them. The purpose of this study is to determine whether the interactive multimedia development procedure with a scientific approach can specifically help improve students' critical thinking skills on buffer solution material, as well as whether the developed media is theoretically or practically feasible. This research method adheres to the Lee and Owens development model, which is divided into five stages: analysis, design, development, implementation, and evaluation.The results showed interactive multimedia with a scientifically validated approach as digital teaching materials that met the requirements to support a special learning process for students with visual learning styles. This interactive multimedia got a very good response with a percentage of 92.85%. It is then reinforced by positive posttest results and has an impact on increasing students' critical thinking skills with a gain index of  0,7(medium category).

Page 14 of 62 | Total Record : 618

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