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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 16 Documents
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Search results for , issue "Vol 12, No 2 (2024): April-May 2024" : 16 Documents clear
Exploring Integrated Instrument Complement at Practical Approach at MAN 4 Tanah Datar Mutia, Ulfa; Mawarnis, Elvy Rahmi
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.v12i2.10992

Abstract

The purpose of this research is to produce Integrated Instrument Components. Exploring integrated instrument complement at practical approach at MAN 4 Tanah Datar which is valid and practical. This study uses the Research and Development research method with the 4-D development model (define, design, develop, and disseminate). But the stages in research with this 4-D model are only carried out from the first to the third stage, namely the define stage to get conditions in the field. design stage to prepare a simple practicum kit on Thermochemistry material, and the develop stage to get the results of the initial practicum IIC that has been designed followed by validity and practicality tests. The research instruments used were validation sheets and response questionnaire sheets. The validation sheet was filled in by 2 lecturers and 1 chemistry educator. The response questionnaire sheet was filled by 17 of in 11th grade students of MAN 4 Tanah Datar. The results showed that: 1) Simple Practical IIC on Thermochemical Material has met the valid criteria with 92% validation results, 2) Simple Practical IIC on Thermochemical Material has met the practical criteria with the results of the student response questionnaire.
Identification of Antioxidant Activity of Bridelia Micrantha Bark Using the DPPH Method Bayani, Faizul; Rosmayanti, Baiq; Hamdani, Ade Sukma; Bimaharyanto, Deden Eka; Hulyadi, Hulyadi
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.v12i2.11346

Abstract

This research aims to identify the antioxidant activity of Bridelia micrantha stem bark using the DPPH method. This research is a laboratory experimental research. Antioxidant activity was measured using the DPPH (2,2-diphenyl-1-picrylhydrazyl) method. Melandean Bark Extract is made using the maceration method with 80% methanol solvent. Identification of antioxidant activity was carried out at concentrations of 20 ppm, 40ppm, 60ppm, 80ppm, and 100ppm. Vitamin C was used as a positive control. Absorbance measurements were carried out using a UV-Vis spectrophotometer at a wavelength of 517nm. The test results in this research showed that the IC50 value of melandean bark extract was 85.54 ppm. Melandean bark extract is classified as a strong antioxidant.
Investigating the Meaningful Learning in Chemical Separation Practicums: A Quantitative Approach Amat, Amat; Erlina, Erlina; Ira Lestari, Ira Lestari; Masriani, Masriani; Maria Ulfah, Maria Ulfah
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.v12i2.11323

Abstract

Meaningful learning has an important element that is finding advantages in obtaining various information comprehensively, thereby ultimately improving learner’s abilities. This aspect can provide information to understand and enhance meaningful learning. The purpose of this research is to analyze meaningful learning in the chemical separation practicum for the Chemistry Education students at FKIP UNTAN. The type of research used is quantitative descriptive with a survey method. Data collection tools in this analysis are questionnaires and interview guidelines. The questionnaires and interviews were administered after the practicum was completed. The number of students for the questionnaire was 59 people consisting of 26 people who were interviewed, including course instructors, laboratory heads, laboratory assistants, and student representatives from classes A1, A2, A3. The research results, in terms of the affective aspect, were 64% in the good category. In terms of the cognitive aspect, a percentage of 73% was achieved in the good category, while the affective-cognitive aspect had a percentage of 66% in the good category. Based on the data obtained, it can be concluded that learning in this chemical separation practicum is meaningful.
Analysis of Ranitidine Hydrochloride Content in Drug X Samples Using A UV-Visible Spectrophotometry Rosmainar, Lilis; Yanwerico, Manuel
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.v12i2.11059

Abstract

The development and progress of modern society cannot be separated from the availability of health medicines. Conventional medicinal products such as capsules and tablets are formulated to release active compounds immediately after consumption. Tablets are solid drug dosage forms consisting of one or more medicinal ingredients. One type of solid drug dosage form is ranitidine hydrochloride. Ranitidine hydrochloride belongs to a class of antagonist drugs that attack histamine H receptors2 selectively and reversibly by reducing the process of secretion by gastric acid which is widely used for the treatment of stomach ulcers, intestinal ulcers (duodenum ulcers), Zollinger-Ellison syndrome, Gastro Esophageal Reflux Disease (GERD) and esophageal erosion. Determination of ranitidine hydrochloride levels was carried out using an ultraviolet spectrophotometer validation method with maximum absorption at a wavelength of ±314 nm. In UV spectrophotometer analysis, peaks were detected at wave number 313.80 nm with absorbance values of 0.425, 0.416, 0.421, 0.424, 0.413, and 0.418. The concentration results obtained for each sample were sample I 119.22%, sample II 116.70%, sample III 118.10%, sample IV 118.94%, sample V 115.85%, and sample VI 117.26% which fulfilled the requirements.
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.
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.
Analysis of Teaching Module in Merdeka Curriculum Used by Teacher in Chemistry Learning at SMAN 10 Pontianak Wilda, Wilda; Hairida, Hairida; Sasri, Risya; Masriani, Masriani; Ulfah, Maria
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.v12i2.11112

Abstract

Teaching modules are learning tools in the merdeka curriculum. The aim of this research is to analyze the merdeka curriculum teaching modules used by educators in teaching chemistry. Quantitative descriptive methods were used in this research, and data collection techniques used measurement and documentation. The data collection tool is a learning tool review sheet that has been validated by two experts using the Gregory test. The object studied was the merdeka curriculum teaching module used by class X chemistry educators at SMAN 10 Pontianak in a total of six meetings. Data analysis was carried out based on scores on each component of the teaching module. Based on the data obtained from the analyzed teaching module components, it obtained a score of 88.3 and was included in the good category. Thus, it can be concluded that the components contained in the teaching module are in accordance with the merdeka curriculum learning and assessment guidelines, and the module is good for use in learning activities.
Development of E-Supplement Biomordant from Several Species of Ferns (Pteridophyta) as A Teaching Material for Green Chemistry Course Hariyanti, Weni; Masriani, Masriani; Sasri, Risya; Sapar, Ajuk; Erlina, Erlina
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.v12i2.11016

Abstract

The purpose of this study was to determine the feasibility of Green Chemistry E-Supplement with material Biomordant from Several Species of Ferns (Pteridophyta). The method used in this research is Research and Development (R&D). The e-supplement teaching material development model used is ADDIE. The subject of this research is Green Chemistry E-Supplement with material Biomordant from Several Species of Ferns (Pteridophyta). The data collection techniques used were direct communication and measurement techniques. The research instrument used was a feasibility assessment sheet and data analysis using a Likert scale. The feasibility of  e-supplement was assessed by two validators. The final results of the feasibility assessment in the aspects of material, media, and language obtained a percentage of 98%. So, it can be concluded that the Green Chemistry E-Supplement with material Biomordant from Several Species of Ferns (Pteridophyta) is very feasible.
Description of Students' Science Literacy Ability on Electrolyte and Non-Electrolyte Solution Materials at SMAN 11 Pontianak Puspita, Ninda Ikke; Junanto, Tulus; Harun, Andi Ifriany; Enawaty, Eny; Ulfah, Maria
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.v12i2.10176

Abstract

It is important for students to learn scientific literacy because it’s related to how students understand the environment and face issues in modern society. Students with excellent scientific literacy skills are able to apply the concepts and facts learned at school in everyday situations. The purpose of this research is to provide an overview of students’ scientific literacy at SMA Negeri 11 Pontianak. The research method used is descriptive research with a quantitative approach. The population under study consists of grade XI science students, including XI IPA 1, XI IPA 2, and XI IPA 3. Sample selection employs purposive sampling technique, considering specific factors such as students who have received instruction from teachers in the subject of electrolyte solutions and possess a good academic abilities. A total of 37 students from class XI IPA 2 are chosen as research samples. Data collection technique involves measurement and communications, utilizing instruments in the form of five essay questions that have been tested for validity. Based on the research data, it is known that aspect of explaining scientific phenomena reached 60,47%, while in determine the properties and samples of solutions from electrical conductivity experimental data, percentage is 75%. To provide conclusions and opnions on electrolyte test results from everyday life phenomena reached 61,93%. If averaged, overall, students’ scientific literacy skills are in the moderate category, with an average score of  65,251%.
Development of an Interactive Multimedia Based E-modul on Geometric Isomer Material Zakaria, Andi; Enawaty, Eny; Lestari, Ira; Muharini, Rini; Erlina, Erlina
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.v12i2.11171

Abstract

Research and development of interactive multimedia based e-modules on geometric isomers material has the aim of determining the validity and response of students to interactive multimedia based e-modules on geometric isomers material. This e-module was developed to help students study geometric isomers material. This research uses the Research and Development (R&D) method with the ADDIE model. Validation techniques were analyzed using Content Validity Ratio (CVR) and Content Validity Index (CVI). Collecting data from student response questionnaires uses measurement techniques with indirect communication. The results of product validation from every aspect, both in e-modules and interactive videos, obtained a CVI value of 0.99 and were declared valid and suitable for use. The results of the student response questionnaire in the initial field test reached an average of 89.72% in the very good category and the main field test reached an average of 88.16% in the very good category.

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