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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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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.
Analisis Pendahuluan sebagai Dasar Pengembangan Modul Kimia Organik Bermuatan Hasil Riset untuk Mahasiswa Pendidikan Kimia Yelfira Sari; Putri Ade Rahma Yulis; Putri Nabila; Evi Pamayanti
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.v11i6.9907

Abstract

Penelitian pendahuluan ini bertujuan untuk memperoleh data awal yang akan digunakan sebagai dasar pengembangan modul pengajaran kimia organik yang berisi hasil-hasil penelitian bagi mahasiswa pendidikan kimia. Penelitian ini menggunakan model pengembangan ADDIE yang dilakukan sampai dengan tahap Analisis dengan tahapan berupa analisis Kurikulum dan RPS (Rencana Pembelajaran Semester), Analisis Dosen, dan Analisis Kemahasiswaan. Berdasarkan hasil kurikulum dan analisis RPS, mata kuliah kimia organik dipresentasikan dalam dua semester, yaitu Kimia Organik 1 dan Kimia Organik 2, yang secara umum terdiri dari 10 materi utama. Hasil wawancara dengan dosen pengajar menyatakan bahwa bahan ajar yang digunakan masih berupa PPT, sedangkan hasil analisis mahasiswa menyatakan bahwa sebanyak 52,6% mahasiswa menyatakan bahwa bahan ajar yang digunakan dosen tidak memenuhi kebutuhan mahasiswa dalam memahami materi pembelajaran. Sebanyak 84,2% mahasiswa membutuhkan bahan ajar lain untuk lebih memahami materi dalam mata kuliah kimia organik. Berdasarkan data tersebut dapat disimpulkan bahwa perlu dikembangkan bahan ajar berupa modul-modul terpadu hasil penelitian bagi mahasiswa pendidikan kimia.
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.
Development of Cooperative Learning-Based Student Worksheets (LKPD) on Chemical Nomenclature Subject Material for 10th Grade Students Septiana, Tri Merry; Sartika, Rody Putra; Rasmawan, Rahmat
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.v12i3.10761

Abstract

AbstractResearch has been done to develop a product in the form of student worksheets chemical compounds for SMA/MA grade X. This research aims to develop students ' worksheets of material nomenclature for SMA/MA grade X, knowing the quality of teaching materials based on expert test (expert judgement), knowing student response, and knowing the implementation of learning process. This research and development (R&D) is conducted based on 4-D models that are limited to the develop stage. The subject of this study is the LKPD based on cooperative learning in compound nomenclature. The product is in the quality of one chemical teacher, one Indonesian teacher, and two chemistry lecturers. Based on the results of the expert quality assessment, the LKPD based cooperative learning in compound name matter got very good/very high category with a percentage of 84.27% worth using as a teaching material in the learning process. Keywords: LKPD, Cooperative Learning, feasibility of the product
The Effect of Different Solvents on Total Tannin Content of Cengkodok (Melastoma malabathricum) Leaf Extracts Masriani Masriani; Khofifah Aditha Parawansa; 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.v11i6.9774

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.
Development of Electrolyte Box to Improve Student Learning Outcomes at SMAN 2 Sungai Ambawang Jurniawan, Ferdy; Kurniati, Tuti; Kurniasih, Dedeh
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.v12i1.10443

Abstract

The problems that arise in class X MIA SMA Negeri 2 Sungai Ambawang related to the learning process have not carried out practicum activities due to limited facilities and infrastructure at school. This study aims to develop Electrolyte Box media on electrolyte and nonelectrolyte solution materials that are valid, practical and effective. This type of research is Research and Development (R&D) ADDIE model. The sampling technique used is purposive sampling technique. The sample in this study amounted to 27 students of SMA Negeri 2 Sungai Ambawang. Validity is measured from the validator's assessment using the validation sheet, practicality is measured from the learner response questionnaire, then effectiveness is measured based on the pretest and posttest results of students. The data analysis technique is descriptive statistics. The results of the validity of the material and media aspects of the Electorlyte Box are 0.83 (very valid) and 0.79 (valid), respectively. The practicality test results in the initial and main field trials obtained very practical criteria with a value of 98.43% and 96.30% respectively. The effectiveness aspect in the initial and main field trials was 0.73 and 0.71 with high criteria. Therefore, the learning media in high school that has been developed is suitable for use as learning media.
Development Problem-BasedLearning Oriented E-worksheet To Train Analytical Skills On Chemical Equilibrium Material Damayanti, Vivi; Novita, Dian
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.v12i3.12189

Abstract

The purpose of this study is to discuss the possibility of using a problem-based learning-oriented e-worksheet to teach students analytical skills on chemical equilibrium material. The feasibility of E-LKPD may be assessed in terms of validity, practicality, and efficacy. The approach employed in this study is Research and Development (R&D), utilizing the 4D development process derived by Tiagharajan, which covers Define, Design, Develop, and Disseminate. Based on the findings of the research, the e-worksheet earned mode 3 on the validation sheet, indicating that it is legitimate. The e-worksheet was deemed extremely practical based on the findings of the student response questionnaire, with a percentage of 86.44%. The e-worksheet is certified effective in terms of analyzing t test findings with a significance value of 0.00, implying that Ho is rejected and Ha is accepted. The n-gain score for analytical skills was 0.55 on element analysis, 0.59 on relationship analysis, and 0.59 on organizing analysis. Based on these findings, it is possible to infer that the problem-based learning-oriented e-worksheet produced to educate students' analytical abilities on chemical equilibrium content is suitable for usage. 
An Analysis of Essential Amino Acid Contents of Canistel Fruit (Pouteria campechiana) as A Source of Vegetable Protein in An Effort of Food Diversification Harun, Andi Ifriany; Sasri, Risya; Diannisa, Nyemas Firda; Puspasari, Yunita
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.v12i1.10491

Abstract

Canistel fruit is a fruit that is not cultivated and is not known to many people because of limited information about this fruit. In the field of biochemistry, analysis of the essential amino acids contained in canistel fruit has never been carried out. The aim of this research is to determine the type and levels of essential amino acids in Canistel fruit as a source of vegetable protein in an effort to diversify food. The sample used was Canistel fruit. The method used was chromatography using UPLC with a C18 column, PDA detector, gradient pump system, and column temperature of 49⁰C. 15 types of amino acids were obtained, consisting of 7 essential amino acids and 8 non-essential amino acids. Essential amino acids are L-Fenilalanin (994,64 mg/kg), L- Isoleusin (704,58 mg/kg), L-Valin (876,69 mg/kg), L-Lisin 1.068,36 mg/kg), L- Leusin (1.199,45 mg/kg), L-Treonin (857,16 mg/kg), and LHistidin (421,03 mg/kg)and 8 non-essential amino acid are L-Serin (957,38 mg/kg), L-Asam glutamat (2.137,7 mg/kg), L-Alanin (1.070,01 mg/kg), LArginin (838,15 mg/kg), L-Glisin (1.101,56), L-asam aspartate (1.900,63 mg/kg), L-Tirosin (141,90 mg/kg), and L-Prolin (1.146,84 mg/kg).
Validity Test of E-LKPD to Improve Students' Argumentation Skills on Chemical Equilibrium Material Andreani, Lucky Arthamevia; Yonata, Bertha
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.v12i3.11500

Abstract

Dalam bidang pendidikan kimia, peserta didik diharapkan dapat mengembangkan keterampilannya sesuai dengan keterampilan yang dibutuhkan pada abad ke-21. Salah satu kompetensi kerangka 4C adalah berpikir kritis dan keterampilan komunikasi. Kedua kompetensi ini dikemas menjadi satu kesatuan dalam keterampilan argumentasi. Keterampilan argumentasi berperan dalam melatih siswa mengembangkan kemampuan berpikirnya sehingga meningkatkan pemahamannya. Tujuan penelitian ini adalah mengembangkan e-LKPD yang valid untuk meningkatkan kemampuan argumentasi siswa dalam konteks kesetimbangan kimia. Metodologi penelitian yang digunakan dalam penelitian ini adalah Research and Development (R&D) dengan menggunakan model pengembangan 4D yang dikemukakan oleh Thiagarajan, yang meliputi tahapan sebagai berikut: pendefinisian, perancangan, pengembangan, dan penyebaran. Namun penelitian ini hanya sebatas tahap pengembangan dengan uji coba terbatas untuk mengetahui kelayakan produk. Keterbatasan ini didasarkan pada beberapa pertimbangan antara lain waktu, tenaga, dan kendala. Validasi dilakukan oleh tiga orang validator yang terdiri dari dua orang dosen program studi pendidikan kimia dan satu orang guru mata pelajaran kimia. Skor validitas yang dihasilkan kemudian dianalisis menggunakan metode mode. Hasil penelitian menunjukkan bahwa E-LKPD valid ditinjau dari validitas isi. Nilai modus untuk kategori ini adalah 5 yang menunjukkan hasil yang sangat valid
Development of Android-Based Marbles Chem Hydrocarbon Mobile Game Media to Improve Motivation and Learning Outcomes of 11th Grade Science Students Izzatul Muhidah; Rudiana Agustini
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.v11i6.8728

Abstract

One of the uses of ICT in the world of education can be in the form of game media because students are actively involved in learning so that it can increase motivation. Learning outcomes are related to motivation, if the motivation given is more appropriate, the more successful the learning will be. This study aims to obtain feasible Marbles Chem Hydrocarbon media to increase student motivation and learning outcomes based on three aspects, namely validity, practicality, and effectiveness. The research method used is research and development / Research and Development (R&D) adaptation from Plomp (2013), consisting of three phases, namely the Preliminer Phase, the Prototype Making Phase, and the Evaluation Phase. Limited trials were conducted in 11th Grade Science (MIPA) of State Senior High School (SMAN) 20 Surabaya. Validity is obtained from three validators. Practicality is obtained from the results of response questionnaires, observation of student activities, and the implementation of learning. effectiveness is obtained from ARCS motivation questionnaire sheets and student learning outcomes. Media validity on content validity and construct validity barada in the range of scores 4 and 5 with valid and very valid criteria. Practicality is reviewed based on observations of learning implementation, student response questionnaires, and observations of student activities with an average percentage of 98.47%, 96.98%, and the results of observations of relevant activities are greater than irrelevant activities, namely 205.16 > 6.43. The effectiveness of the media obtained pretest-posttest increased from 60 incomplete categories to 87.69 complete categories and the ARCS motivational questionnaire increased from 55.32 with the moderately effective category to 95.85 very effective categories. Based on the results of validity, practicality and effectiveness, Marbles Chem Hydrocarbon media is suitable to be used as a learning medium on Hydrocarbon material.

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