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INDONESIA
Hydrogen: Jurnal Kependidikan Kimia
ISSN : 23386487     EISSN : 26563061     DOI : Prefix 10.33394
Core Subject : Science, 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.
Articles 664 Documents
Implementasi Think Aloud Pair Problem Solving (Tapps) Berbantuan Media Kartu Bergambar Terhadap Kemampuan Pemecahan Masalah DanHasil Belajar Kognitif Siswa Baiq Aninda Junita
Hydrogen: Jurnal Kependidikan Kimia Vol 3, No 2 (2015): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (492.574 KB) | DOI: 10.33394/hjkk.v3i2.685

Abstract

Penelitian ini bertujuan untuk mengetahui perbedaan kemampuan pemecahan masalah dan hasil belajar kognitif siswa yang dibelajarkan dengan model TAPPS berbantuan media kartu bergambar dengan siswa yang dibelajarkan dengan model konvensional. Jenis penelitian ini adalah penelitian quasi eksperimental dengan desain penelitian ” posttest only control group design”. Teknik pengambilan sampel yang digunakan adalah simple random sampling sehingga terpilih siswa kelas X2­sebagai kelas eksperimen (Model TAPPS berbantuan media kartu Bergambar) dan kelas X3 sebagai kelas kontrol (Model Konvensional).Hasil penelitian menunjukkan bahwa kemampuan pemecahan masalah dan hasil belajar kognitif siswa yang dibelajar dengan model pembelajaran (TAPPS) berbantuan media kartu bergambar  lebih tinggi dari pada siswa yang dibelajarkan dengan modelpembelajaran konvensional. Dengan demikian, dapat disimpulkan bahwa ada perbedaan kemampuan pemecahan masalah dan hasil belajar kognitif antara siswa yang dibelajarkan dengan model (TAPPS) berbantuan media kartu bergambar dengan siswa yang dibelajarkan dengan model konvensional.
Karakterisasi Karbon Baggase Teraktivasi dan Aplikasinya untuk Adsorpsi Logam Tembaga Dahlia Rosma Indah; Safnowandi Safnowandi
Hydrogen: Jurnal Kependidikan Kimia Vol 7, No 2 (2019): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (779.427 KB) | DOI: 10.33394/hjkk.v7i2.1912

Abstract

Bagasse is waste produced from the process of milking or extracting sugarcane stems. Baggase can be optimized in terms of use value and its function as an alternative technology, namely as an active carbon manufacturing material that can be used as a copper (Cu) adsorbent. This study discusses the functional baggase activated carbon group of phosphoric acid and nitric acid using Fourier Transform Infra Red (FTIR) and its application as a copper metal adsorbent in silver craft waste in Ungga Village, Praya, Central Lombok. The production of activated bagasse carbon consists of three stages, namely first dehydration by burning bagasse until it turns into carbon, the second carbonation is heating at 500ºC, carbon results are 100-200 mesh and third, activation by soaking 50 grams of carbon in 500 mL of 20% phosphoric acid and 20% nitric acid for 12 hours. After that the carbon is dried at 110ºC and finally heated at 500ºC for 1 hour. The bagasse carbon that has been made is put into 25 mL of waste water sample with a mass of 2 grams of adsorbent. Samples were then stirred at 30, 60, 90, 120 and 150 minutes contact time variations at a speed of 180 rpm using a batch system. The optimum contact time that is used to calculate the efficiency of copper metal content reduction is by calculating the difference in the metal content of copper metal before it is adsorbed and after it is adsorbed using activated carbon baggase. Concentrations of all copper metals were analyzed using Atomic Absorption Spectrophotometer (AAS). Identification using FTIR spectrophotometer shows that carbon baggase in this study contains functional groups C = O, C = C, C-C, N = O, C = N, C-OH, CH2 and C-H. From the research it was found that the copper metal content in the sample was 14.5710 ppm. The optimum contact time on copper metal adsorption is at 120 minutes contact time which results in optimum adsorption efficiency on copper metal that is 84.88%. Activated carbon baggase is an effective adsorbent to reduce levels of copper metal in silver craft waste.
Korelasi Tingkat Penguasaan Kimia Dasar II Terhadap Prestasi Belajar Dasar-Dasar Kimia Analitik Pada Mahasiswa Jurusan Pendidikan Kimia IKIP Mataram Arif Kurniadin
Hydrogen: Jurnal Kependidikan Kimia Vol 1, No 1 (2013): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (61.989 KB) | DOI: 10.33394/hjkk.v1i1.579

Abstract

Mata kuliah Kimia Dasar II merupakan salah satu mata kuliah wajib bagi mahasiswa jurusan pendidikan kimia IKIP Mataram. Mata kuliah Kimia Dasar II sebagai prasyarat memprogramkan mata kuliah Dasar-Dasar Kimia Analitik.Tujuan penelitian ini adalah untuk mengetahui hubungan nilai Kimia Dasar II dengan nilai Dasar-­Dasar Kimia Analitik. Adapun populasi dalam penelitian ini adalah mahasiswa yang telah mengikuti mata kuliah Kimia Dasar II sejumlah 547 orang yang tersebar dalam tiga angkatan, yaitu angkatan 2007 sebanyak 115 orang, angkatan 2008 sebanyak 172, angkatan 2009 sebanyak 220 orang, sehingga sampel yang di ambil sebanyak 127 orang yang ditentukan dengan teknik random sampling yaitu sebesar 25% yang diambil dari tiga angkatan. Dari hasil perhitungan statistik terhadap data nilai Kimia Dasar II dengan nilai Dasar-Dasar Kimia Analitik diperoleh rhitung 0,04 yaitu lebih besar dari rtabel 0,176 (0,04 > 0,176) pada taraf signifikan 5%. Hal ini menyatakan bahwa ada korelasi yang signifikan antara nilai Kimia Dasar II dengan prestasi belajar Dasar-Dasar Kimia Analitik, sehingga konstribusi Kimia Dasar II terhadap prestasi belajar Dasar-Dasar Kimia Analitk sebesar 0.0016%.
Pengaruh Ukuran Serbuk Pada Aktivasi Tanah Liat Dari Tanak Awu Terhadap Daya Adsorpsinya Pada Pemurnian Minyak Goreng Bekas Baiq Asma Nufida; Nova Kurnia; Yeti Kurniasih
Hydrogen: Jurnal Kependidikan Kimia Vol 2, No 2 (2014): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (323.201 KB) | DOI: 10.33394/hjkk.v2i2.660

Abstract

This research was aimed to get the effect of particel size of activated natural clay from Tanak Awu to their adsorption capacity for increase reused cooking oil quality. At previous research we done the activation of natural clay using acid (HCl) and got an optimal concentration of acid at 1 molar. Natural clay was grinding until particel size at 50 mesh, 60 mesh and 100 mesh then it was characterized in specific surface area by methylen blue methods and also acidity surface by acid base titration. Then activated natural clay was applied for purifying reused cooking oil by analyzing water content, acid number and peroxide number. The result showed that there are the effect of particel size of natural clay to acidity surface and specific surface area. While the adsorption capacity of natural clay on purifying reused cooking oil got that optimal particel size of activated natural clay at 60 mesh which getting the decrease of water content, acid number and peroxide number by following reach was 89,13%, 58,61% and 60,52%.
Pengaruh Model POGIL (Process Oriented Guided Inquiry Learning) Terhadap Keterampilan Berpikir Kreatif dan Pemahaman Konsep Siswa Pada Materi Redoks Malisa Aprilian; Muhali Muhali; Citra Ayu Dewi
Hydrogen: Jurnal Kependidikan Kimia Vol 6, No 2 (2018): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (889.292 KB) | DOI: 10.33394/hjkk.v6i2.1605

Abstract

This study aims to determine the effect of POGIL to creative thinking skilland conceptual understanding of students at senior high school. This researchform of quasi experimental was carried out by postest-only control groupdesign. Research conducted in SMAN1 Montong Gading using sample whichdetermined by saturated sampling technique, 24 number of XA class studentsas experiment class, and 24 number of XB class students as control class.Creative thinking skills data was collected by observation sheets andconceptual understanding data by reasoning multiple choices test. The resultsshowed that the average creative thinking skill of experimental class at the 1st,2nd, and 3rdmeeting was 64.388, 72.656, and 79.752.The mean of creativethinking skill of the control class at the 1st, 2nd, and 3rdmeeting was 59.765,67.447, and 73.476.The hypothesis test result of creative thinking skill datausing independent sample t-test it is known that significance value of t-countwas 0.040 < 0.05, and conceptual understaning data by paired sample t-test itis known that significance value of t-count was 0.000 < 0.05. So that, there isinfluence of POGIL model to student creative thinking skill and conceptualunderstanding.
EFEKTIVITAS FOTOREDUKSI ION Cu(II) TERKATALISIS TiO2 DALAM LIMBAH CAIR INDUSTRI KERAJINAN PERAK DI DESA UNGGA KEC. PRAYA LOMBOK TENGAH Husnul Hatimah Husnul Hatimah
Hydrogen: Jurnal Kependidikan Kimia Vol 5, No 1 (2017): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.822 KB) | DOI: 10.33394/hjkk.v5i1.104

Abstract

This research has been done to study the effect of addition of TiO2 photocatalyst in liquid waste of silver industry in Ungga Village, Kec. Praya Kab. Central Lombok on the effectiveness of photoreduction of Cu (II) ions which are catalyzed by TiO2. The photoreduction process is carried out by irradiating liquid waste containing Cu (II) ions without or with the addition of TiO2 photocatalyst powder in a closed reactor equipped with UV lamps. The photoreduction process conditions are 50 mL of silver waste containing Cu (II) with reaction time for 24 hours and a mass of TiO2 20 mg at each 10 ppm Cu (II) ion concentration. The photoreduction results are determined by the difference in the concentration of the starting Cu (II) ions with the residual Cu (II) ion concentration in the silver craft waste without or with the addition of TiO2 photocatalyst. Furthermore, the data obtained were compared to the results of photoreduction of Cu (II) ions pure TiO2 laboratory scale. The amount of metal in the mixture was determined by Atomic Absorption Spectrophotometric Method (AAS). The results showed that in silver handicraft waste containing Cu (II) ions, the addition of TiO2 can increase the effectiveness of the Cu (II) ion photoreduction from 6.57% to 33.38%, which begins with the adsorption process. The other ions cause inter-reduction competition metals so as to decrease the effectiveness of TiO2 catalysed Ti (II) ionic ferrication in silver handicrafts waste in Ungga Village Kec. Praya Kab.central Lombok
Efektivitas Penerapan Strategi Everyone is a Teacher Here Untuk Meningkatkan Prestasi Siswa Kelas VIII.A SMPN 1 Gunungsari Pada Mata Pelajaran IPA Lalu Ukir Ukir
Hydrogen: Jurnal Kependidikan Kimia Vol 6, No 1 (2018): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (764.206 KB) | DOI: 10.33394/hjkk.v6i1.1595

Abstract

This research was conducted at Gunungsari 1 Public Middle School with the aimof knowing the effectiveness of the use of Everyone is A Teacher Here strategy inlearning activities, so that how far the results of student learning achievementimproved by using the learning strategy. This type of research is classroomaction research (CAR) ), which is carried out by the cycle of persiklus withseveral stages, namely: planning, implementation, observation and reflection.The data in this study are student learning activities and student learningoutcomes. The results of the study showed that the application of BeajarEveryone is a Teacher Here strategy was effective to improve students' learningachievement in grade VIII.A from cycle I to cycle II with an average score of 70 ,48 in the first cycle to 77.27, and classical completeness from the first cycle tothe second cycle experienced a significant increase of 59.38 to 87.5 while theresults of the analysis of the N-Gain test were 0.32 with the moderate category.Conclusions from the results of the study this is the application of the learningstrategy Everyone is a Teacher Here effectively increases the learning activitiesof Gunungsari 1 Junior High School students in class VIII.A so that learning ismore focused, absorbs more subject matter and is more fun for students. So itcan be concluded that the application of Everyone's a Teacher Here learningstrategy can effectively improve science learning achievement of students ofGunungsari 1 Junior High School class VIII.A from cycle I to cycle II.
Pengembangan Multimedia Interaktif Kimia Berbasis PBL (Problem Based Learning) untuk Meningkatkan Keterampilan Generik Sains Siswa Ratna Azizah Mashami; Khaeruman Khaeruman
Hydrogen: Jurnal Kependidikan Kimia Vol 8, No 2 (2020): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (631.832 KB) | DOI: 10.33394/hjkk.v8i2.3138

Abstract

Most of the students had difficultyin understanding the concept of chemistry  which is abstract and cannot connect the concepts studied with the phenomena in everyday life.This is because the instructional media and learning models used by the teacher do not pay attention to submicroscopic representations and do not link chemistry with the environment around students.This study aims to develop Chemical Interactive Multimedia (CIM) based on PBL (Problem Based Learning) to improve students' Generic Science Skills (GSS). PBL-based CIM was developed on the concept of salt hydrolysis in a tutorial format. This study was a Research and Development using the ADDIE design. The research procedure consists of five stages, namely Analyze, Design, Development, Implementation, and Evaluation. The PBL-based CIM effectiveness test against the GSS of MA Darul Habibi NW Paok Tawah students was carried out at the implementation stage using a one-group pretest-posttest design. The instrument used was in the form of a questionnaire to obtain eligibility data and student responses, as well as a description test to obtain KGS data. CIM based on PBL feasibility data will be analyzed using a five-scale absolute norm, student responses were analyzed descriptively, and GSS data were analyzed using a normalized gain score (N-gain). The validation results show that PBL-based MIK has an average score of 92% which means it was very feasible.The limited trial of 12 students stated that PBL-based CIM met the aspects of appearance, readability, language, and ease of use very well.The results of PBL-based CIM trials in learning can increase students' GSS which is indicated by an average N-gain score of 58% in the moderate category.Therefore, it can be concluded that PBL-based MIK was successfully developed in the very feasible category and could improve students' GSS.
PENGEMBANGAN MODUL LEARNING CYCLE 5E BERORIENTASI GREEN CHEMISTRY PADA MATERI SISTEM KOLOID UNTUK PENINGKATKAN LITERASI SAINS SISWA Febyarni Kimianti; Suryati Suryati; Citra Ayu Dewi
Hydrogen: Jurnal Kependidikan Kimia Vol 4, No 2 (2016): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1330.891 KB) | DOI: 10.33394/hjkk.v4i2.88

Abstract

One of critical problems faced by students in learning process is lack of teaching materials. Teaching materials are selected by the teacher, and mostly they focuson a review of materials and problem solving, without considering environment aspect in learning. Therefore, the attitude of student toward environment and awareness of science are lacking. Ideally, students must be equipped with modules that can stimulate them to learn and have environment awareness. The purpose of this study was to determine the feasibility and effectiveness of a developed module. The module was developed by adopting ADDIE model, consisting of 1) analyze, 2) design, 3) develop, 4) implementation, and 5) evaluation. The study was conducted on class XII IPA3 at SMAN 1 Batukliang. At development stage, the validation results showed that the module is very feasible for use, as suggested by expert evaluation score of 96.04%, practitioner evaluation of 97.77%, as well as average score from students of 97.27%. Result of N-gain test shows that the average N-gain 0.8 demonstrating the remarkable effectiveness of module in improving the scientific literacy of students. Overall, it can be concluded that the developed module was highly feasible for use and can help to improve scientific literacy of students.
Pengaruh Strategi Pengembangan Keahlian Berpikir Divergen Dengan STAD Terhadap Karakter Berpikir Divergen Konvergen dan Kemampuan Berpikir Siswa Yusran Khery; Destri Supriani
Hydrogen: Jurnal Kependidikan Kimia Vol 2, No 1 (2014): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (556.098 KB) | DOI: 10.33394/hjkk.v2i1.643

Abstract

Tujuan penelitian ini untuk mengetahui ada tidaknya pengaruh strategi pengembangan keahlian berpikir divergen dengan STAD (STAD-Divergen) terhadap karakter berpikir divergen konvergen dan kemampuan berpikir divergen siswa kelas X SMA Islam Al-Azhar NW Batulayar pada materi Hidrokarbon. Populasi dalam penelitian ini adalah siswa kelas X di SMA Islam Al-Azhar NW Batulayar tahun ajaran 2012/2013. Penelitian ini menggunakan metode Eksperimen. Pengumpulan data dalam penelitian ini dilakukan dengan metode angket, dan tes. Analisis data dilakukan dengan statistik parametrik perbandingan dua sampel, uji t-sampel bebas dan deskriptif kualitatif menggunakan program SPSS 16.0 for windows. Hasil uji Hipotesis ini membuktikan Strategi pengambangan keahlian berpikir divergen (STAD-Divergen) tidak berpengaruh terhadap karakter berpikir divergen dan konvergen, tetapi berpengaruh terhadap kemampuan berpikir divergen siswa.  

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