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Yeanchon H. Dulanlebit
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Gedung Jurusan Pendidikan MIPA FKIP Lt. 2 Program Studi Pendidikan Kimia Jl. Ir. M. Putuhena, Kampus Universitas Pattimura Poka-Ambon, Maluku, Indonesia
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Molluca Journal of Chemistry Education (MJoCE)
Published by Universitas Pattimura
ISSN : 27228266     EISSN : 27228258     DOI : https://doi.org/10.30598/MJoCEvol10iss1pp1-7
Core Subject : Science, Education,
Chemistry Education
Molluca Journal of Chemistry Education (MJoCE) merupakan jurnal ilmiah berkala dengan ciri khas/identitas Kimia dari Maluku, seperti: minyak atsiri, produk dan pangan laut, pendidikan kimia yang berkarakter kelautan dan kepulauan, dll. Jurnal ini berisi tulisan ilmiah tentang bidang kimia yang meliputi hasil penelitian kimia, kimia teori, pendidikan kimia dan kimia terapan
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 8 Documents
 1 
Search results for , issue "Vol 10 No 2 (2020): Molluca Journal of Chemistry Education (MJoCE)" : 8 Documents clear
KEMAMPUAN EKSTRAK BIJI KELOR SEBAGAI INHIBITOR KOROSI BESI DALAM LARUTAN HCl Sunarti Sunarti; Victor Kayadoe; Prima D Rahawarin
Molluca Journal of Chemistry Education (MJoCE) Vol 10 No 2 (2020): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol10iss2pp72-80

Abstract

ABSTRACT There was already an experiment to test the capability of moringa seed extract in inhibiting corrosion of iron using the method of weight reduction. Inhibit power is obtained based on the inhibition efficiency of moringa seed extract concentration variation of 1%, 2%, 3%, and 4% as well as temperature variations, namely 35, 40, 45, and 50 based on the results of research obtained the data and the rate of corrosion inhibition efficiency the concentration variation in a row l: 82.92%; 86.87%; 91.02%; 93.74% and 0.4342; 0.3032; 0.2235; 0.1710.In the temperature variation data obtained and the rate of corrosion inhibition efficiency in a row
PREPARASI DAN KARAKTERISASI ARANG DARI AMPAS SAGU SEBAGAI ADSORBEN DALAM MENURUNKAN KADAR COD DAN BOD LIMBAH CAIR PABRIK TAHU Victor Kayadoe; Sunarti Sunarti; Yeslia Utubira; Nova Kayadoe
Molluca Journal of Chemistry Education (MJoCE) Vol 10 No 2 (2020): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol10iss2pp81-88

Abstract

The preparation and characterization of charcoal from sago pulp as an adsorbent in reducing content of COD and BOD of tofu factory waste has been carried out. Sago pulp has been turned into charcoal through carbonization at 400oC for 2 hours. The results of charcoal characterization using XRD show that the carbon produced from sago pulp carbonization has a low crystallinity which is indicated by a wide peak at around 2θ 23oC, which is the characteristic carbon peak. The results of characterization using Surface Area Analyzer show that the pores in the sago pulp charcoal are very few and irregular, and dominated by macropores. The results of the characterization using SEM showed that sago pulp charcoal had very few pores. The material is dominated by the residue from the results of non-porous carbonization. Performance as an adsorbent to reduce the content of COD and BOD in tofu mill wastewater by batch method shows the capacity and efficiency of adsorption on COD of 75.00 mg/g and 35.21%, respectively. While capacity and efficiency of adsorption on COD of 7.00 mg / g and 3.57%, respectively
PENERAPAN DESAIN PRAKTIKUM BERBASIS STEM PADA PEMBUATAN TEMPE DARI FERMENTASI BIJI NANGKA (ARTOCARPUS HETEROPHYLLUS) UNTUK MENINGKATKAN LITERASI SAINS SISWA SMK Riana Antika Amahoroe; M Arifin; H Solihin
Molluca Journal of Chemistry Education (MJoCE) Vol 10 No 2 (2020): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol10iss2pp89-100

Abstract

Penelitian ini bertujuan untuk menghasilkan desain praktikum berbasis STEM fermentasi tempe dari biji nangka pada pembelajaran fermentasi. Metode penelitiannya adalah R&D dengan desain penelitian One Group Pretest-Postest. Subjek penelitian terdiri dari 25 siswa Kelas X SMK di Cisarua. Instrumen yang digunakan antara lain: LKS, lembar observasi keterlaksaan RPP, tes peningkatan literasi sains. Hasil penelitian menunjukkan bahwa karakteristik desain praktikum berbasis STEM antara lain: memecahkan permasalah yang ada dalam kehidupan sehari-hari, mengintegrasikan STEM dalam praktikum yang berbasis proyek, serta meningkatan kemampuan 4C dan literasi sains siswa. Penerapan desain praktikum berbasis STEM pada pembelajaran fermentasi dapat terlaksana dengan sangat baik dengan keterlaksaan pembelajaran pada Pertemuan I untuk guru dan siswa, sebesar 95% dan 92,58. Pertemuan II sebesar 93,89% dan 93,36% serta Pertemuan III sebesar 100% dan 92,26%. Selanjutnya hasil belajar siswa menunjukkan peningkatan literasi sains siswa setelah praktikum berbasis STEM diterapkan dengan rata-rata nilai N-Gain adalah sebesar 76%. Sedangkan indikator literasi sains siswa mengalami peningkatan paling tinggi adalah aspek menafsirkan data dan bukti ilmiah dan yang paling rendah adalah menggunakan konsep, fakta, prosedur, dan penalaran. Hal ini berarti Hal ini berarti penggunaan LKS praktikum berbasis STEM dapat mempemudah guru dalam proses pembelajaran dan mempermudah siswa dalam memahami materi fermentasi.
PENINGKATAN HASIL BELAJAR SISWA PADA MATERI IKATAN KIMIA MELALUI PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE NUMBERED HEAD TOGETHER (NHT) BERBANTUAN MODUL DI KELAS X SMA NEGERI 10 AMBON Dominggus Tahya
Molluca Journal of Chemistry Education (MJoCE) Vol 10 No 2 (2020): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol10iss2pp101-108

Abstract

Research has been conducted to determine student learning outcomes in chemical bonding material by applying the cooperative learning model type Numbered Head Together (NHT) with the help of modules, in class X students of SMA Negeri 10 Ambon. This type of research is quantitative descriptive. Based on the analysis of the data obtained 12 students (40%) get very good qualifications, 10 students (33.3%) get good qualifications, 6 students (20%) get enough qualifications, and 2 students (6.7%) get less qualifications. The acquisition of N-gain value is 18 students (60%) in the high category and 12 students (40%) are in the medium category. The results of the normalized gain score analysis of the average of all students amounted to 0.71 are in the high category. These results indicate that the application of the NHT (numbered heads together) cooperative learning model with the help of modules succeeded in improving student learning outcomes in all aspects (cognitive, affective, and psychomotor)
Strategi Strategi Konflik Kognitif Dapat Mereduksi Beban Miskonsepsi Mahasiswa Calon Guru Kimia Pada Konsep Ikatan Kimia Napsin Palisoa
Molluca Journal of Chemistry Education (MJoCE) Vol 10 No 2 (2020): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol10iss2pp109-114

Abstract

The concept of chemical bonds is often understood in a misconception by some students which causes the understanding of misconceptions also occurs in advanced chemical concepts. The research objective is to reduce the misconception burden of chemistry teacher candidates on the basic concepts of chemistry using cognitive conflict strategies. Case study research using qualitative methods with 10 students as research subjects obtained through misconception detection tests using the three tier test method. Research data obtained using data triangulation (observation, documents, and interviews). The results obtained indicate that the cognitive conflict strategy has succeeded in changing the cognitive structure (schemata) of individual students, causing changes in the burden of high misconceptions to low and understanding misconceptions (MK) to know the concept (TK). Future studies can use cognitive conflict strategies on other chemical concepts with high or low misconceptions. Konsep ikatan kimia sering dipahami secara miskonsepsi oleh sebagian mahasiswa yang menyebabkan pemahaman miskonsepsi juga terjadi pada konsep-konsep kimia lanjutan. Tujuan penelitian, yaitu mereduksi beban miskonsepsi mahasiswa calon guru kimia pada konsep-konsep dasar kimia menggunakan strategi konflik kognitif. Penelitian studi kasus menggunakan metode kualitatif dengan 10 mahasiswa sebagai subjek penelitian yang diperoleh melalui tes pendeteksi miskonsepsi menggunakan metode three tier tes. Data penelitian diperoleh menggunakan triangulasi data (observasi, dokumen, dan wawancara). Hasil penelitian yang diperoleh menunjukakan strategi konflik kognitif berhasil merubah struktur kognitif (skemata) mahasiswa secara individu, menyebabkan terjadi perubahan beban miskonsepsi tinggi menjadi rendah dan pemahaman miskonsepsi (MK) menjadi tahu konsep (TK). Penelitian selanjutnya dapat menggunakan strategi konflik kognitif pada konsep-konsep kimia yang lain dengan beban miskonsepsi tinggi maupun rendah.
PENGGUNAAN BAHAN AJAR E-LEARNING BERBASIS PENDEKATAN INKUIRI UNTUK MEMBANTU SISWA MENCAPAI KETUNTASAN BELAJAR Fatma Al Hamid
Molluca Journal of Chemistry Education (MJoCE) Vol 10 No 2 (2020): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol10iss2pp115-123

Abstract

Background of this development research is the less of student learning outcome as the result of the lack of educator in the East Babar island. The Purpose of this research is to develop e-learning based teaching materials at stoichiometry concept as an effort to solve the lack of teachers in the East Babar island. The first stage of this research is developing the teaching material at stoichiometry concept using ADDIE models and the second stage is to apply, it in terms of trial, to student. There are two types of the trial, first is to check the effect of this teaching material in a small group, and the second is to test it in the real sample. The trial of teaching materials uses One Group Pre-test and Post-test Design. Instruments of this research consist of validation instrument form (first step), observation form of the application of learning design; observation form of student activities; observation form of students’ affective, students’ responses form, and learning outcomes test. The obtained data at first step analyzed by using descriptive analysis, and for the second step analyzed by using statistical analysis. Result show that e-learning based teaching material that been develop is in good quality and ready to implementation in class
PENERAPAN LKS EKSPERIMEN PADA KONSEP ASAM DAN BASA TERHADAP HASIL BELAJAR SISWA SMP NEGERI 1 MASOHI KABUPATEN MALUKU TENGAH Sofia Latumahina; Semuel Unwakoly
Molluca Journal of Chemistry Education (MJoCE) Vol 10 No 2 (2020): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol10iss2pp124-129

Abstract

Proses pembelajaran yang kurang menarik dengan hanya berorientasi pada guru dan tidak mengembangkan kemampuan berpikir siswa serta sarana pendukung yang tidak memadai di kelas, merupakan penyebab hasil belajar siswa SMP Negeri 1 Masohi pada materi Kimia tidak mamuaskan. Untuk dapat memperbaiki hasil belajar maka diperlukan penerapan media yang sesuai dengan kebutuhan proses pembelajaran. Salah satu media yang dapat digunakan dalam proses pembelajaran kimia adalah dengan menerapkan eksperimen atau demonstrasi di kelas. Sehubungan dengan hal tersebut di atas, maka penerapan Lembar Kerja Siswa (LKS) Eksperimen sebagai media pembelajaran dianggap sebagai salah satu cara yang tepat untuk dapat meningkatkan hasil belajar siswa. Penelitian ini dilakukan untuk mengetahui penerapan LKS Eksperimen pada konsep asam dan basa terhadap hasil belajar siswa kelas VII SMP Negeri 1 Masohi Kabupaten Maluku Tengah. Penelitian bersifat deskriptif kuantitatif yang merupakan metode yang tepat untuk melihat hasil belajar yang akan diperoleh. Data penelitian yang diperoleh adalah sebanyak 32 siswa (100%) mencapai ketuntasan belajar dengan 14 siswa (43,8%) dengan kualifikasi sangat baik, dan 18 siswa (56,2%) dengan kualifikasi baik pada konsep asam dan basa. Hal ini menunjukkan bahwa dengan melakukan eksperimen dengan menggunakan LKS dapat membantu penguasaan konsep belajar dari siswa pada materi-materi kimia di SMP
ANALISIS KANDUNGAN MERKURI (Hg) PADA LIMBAH HASIL PENGOLAHAN EMAS DI GUNUNG NONA DESA WAPSALIT PULAU BURU L S Sello; Abraham Mariwy; Nazudin Nazudin
Molluca Journal of Chemistry Education (MJoCE) Vol 10 No 2 (2020): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol10iss2pp130-134

Abstract

The research had been done to analyze the mercury (Hg) content on tailing the result of gold processing at Nona Mountain Wapsalit Village Buru Island. The dry sample was prepared by putting it into the oven at 400C temperatures in two days and then the wet destruction done to the sample. The Tailing was analyzed by using SSA – Cold Steam to get to know about the mercury (Hg) content. The result showed that the average mercury (Hg) content at the location I was 721,43 ppm and at the location II was 344,88 ppm. Thus, the results showed that tailing concentration at the location I had average mercury (Hg) content higher than at the location II

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