Ditapis dengan
Pengembangan E-LKPD Koloid Berbasis Sains Teknologi Masyarakat (STM)Menggunak…
This study aims: 1) to produce colloidal e-LKPD based on community science technology (STM) using an applicationflip pdf professional for class XI SMA/MA equivalent as teaching materials that are valid based on aspects of content substance, learning design, display, and utilizationsoftware; 2) to find out how the response of teachers and students as users of the developed colloidal e-LKPD. This…
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- 1905110957
Pengembangan Lembar Kegiatan Peserta Didik Berbasis Inkuiri Terbimbing Pada M…
This study aims to produce valid guided inquiry-based worksheets on carbon compounds material in class XII SMA/MA that are valid based on aspects of content feasibility, guided inquiry model characteristics, language, presentation and graphics. This development research is a type of Research and Development (R&D) with the ADDIE development model which has 5 stages namely Analysis, Design, …
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Pengaruh Suhu Dan Waktu Aktivasi Fisika Pada Karakter Arang Aktif Cangkang Bu…
SUMMARY Rubber fruit shells have a chemical composition of cellulose, lignin and hemicellulose as a carbon source that has the potential to be used as an adsorbent. The way to improve the character of rubber fruit shells is to do activation, both chemical and physical activation. This study examined the characteristics of chemically and physically activated rubber fruit shells with the effects…
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Sintesis Katalis Cao Dengan Metoda Hidrasi-Dehidrasi Terimpregnasi Koh Dan Ap…
SUMMARY Biodiesel is an alternative fuel that is environmentally friendly and can be synthesized from oil/fat and methanol using a catalyst. Heterogeneous CaO catalyst is widely used in biodiesel synthesis because it has high catalytic activity and has low solubility in methanol. The KOH/CaO catalyst which was obtained from CKD calcinated at 900℃ was used for the synthesis of biodiesel with …
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Pengaruh Suhu Dan Waktu Aktivasi Fisika Pada Cangkang Buah Karet (Hevea Brasi…
SUMMARY Rubber fruit shell biomass is a rubber plantation waste that has been extensively studied as a source of activated carbon. This study aims to study the characteristics of activated carbon obtained from the chemical-physical activation process based on variations in temperature and time. Temperature and time are factors in the physical activation process, because the higher the temperat…
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Pengaruh Suhu Dan Waktu Aktivasi Fisika Pada Karakter Arang Aktif Cangkang Bu…
SUMMARY Rubber fruit shell (Hevea brasiliensis) is a part of rubber fruit that is not widely used, so it only becomes waste in rubber producing areas. Rubber fruit shell charcoal is used as an adsorbent but has a low surface area. This study aims to increase the surface area of activated carbon by of activation (chemical and physical). The carbonization process was carried out at 400 oC for 30…
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- 1803112200
Aplikasi Arang Aktif Tongkol Jagung Teraktivasi Cacl2 Dan Kalsinasi 500°C Se…
SUMMARY Corncob (Zea Mays L.) have chemical composition of cellulose, hemicellulose and lignin which potentially to be used as an adsorbent. This research aims to convert corncorb into charcoal through a carbonization process with klin drum and activated with CaCl2, then applied to improve the quality of peat water. Carbonization was carried out with klin drum method and activated with CaCl2 1…
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- 1703110593
Sintesis Katalis K2o/Cao Menggunakan Metode Hidrasi-Dehidrasi Dan Aplikasinya…
SUMMARY CaO catalyst is a heterogeneous base catalyst which has been widely used in biodiesel synthesis. Hydration-dehydration is one of the newest methods in the synthesis of CaO catalyst which is considered quite efficient in increasing biodiesel yield. The purpose of this study was to to synthesize K2O/CaO catalyst from blood clam shells using KOH-impregnated (%K: 0, 1, 3, 5, 7) hydration-d…
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- 1703110748
Sintesis Komposit Zno/Bentonit Dengan Bantuan Gelombang Mikro Serta Uji Fotod…
SUMMARY ZnO semiconductor is a metal oxide which has applications in the field of photodegradation. Some of the advantages of ZnO are small particle size, high exchange reaction activity and efficiency in the UV light region, however the ZnO catalyst has a large Band gap energy and is difficult to separate from water after the photocatalytic reaction limits its application in the treatment of …
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- 1703121934
Pengembangan E-LKPD Berbasis Saintifik Menggunakan 3D Pageflip Professional P…
This study aimed to develop a scientific-based e-Student Worksheet using professionsal 3D pageflip on hydrocarbon material on students' critical thinking skills at Vocational High Schools. The method used for this research was Research and Development (R & D), along with the ADDIE model. Data collection techniques use validation sheets, questionnaires from educators and students' responses.…
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- 1910246998
Efektivitas Penggunaan Bacl2 Terhadap Penurunan Kadar Na2so4 Pada Proses Pemu…
ABSTRACT Sodium hydroxide (NaOH) is a chemical used to help remove lignin or delignification which can damage the color of the pulp which is used in the cooking process in the digester. In the chemical plant department, NaOH is produced by a chlor alkali plant using a salt solution as raw material having a concentration of 300 ± 5 gpl. The salt solution used to produce NaOH will be purified f…
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- 2007036861
Study Runability Sistem Sizer Baru Di Paper Machine 2 Pt.Rapp
ABSTRACT The runability of a paper machine is one of the most important things in producing quality paper. If the runability is good, it can produce more paper products and can reduce production costs. Uneven starch and streak are problems that are often found in sizers, which are part of the paper machine. The runability of the old sizer system in PT RAPP's paper machine 2 had a splashing pro…
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PENGARUH Ph DALAM TAHAP SINTESIS ZEOLIT DARI LEMPUNG MAREDAN SECARA REFLUKS D…
SUMMARY The local potential of Maredan Village, Tualang District, Siak Regency in the form of natural clay has been widely used as raw material for synthetic zeolite because the silica and alumina content is quite high. The purpose of this study to synthesize zeolite and determine the characteristics of the zeolite obtained from the synthesis process on the various effect of pH (8, 10 and 12) …
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- 1803112157
Uji Degradasi Zat Warna Reactive Black 5 Oleh Trichoderma ASPERELLUM Lbkurcc1
SUMMARY Reactive black 5 (RB5) is a synthetic azo type dye that is widely used in the textile industry for dyeing fabrics. One method that can be used to degrade synthetic dyes such as RB5 is to use biological methods, namely directly using live fungal cells or using laccase enzymes. Trichoderma asperellum is a fungus that can produce laccase enzymes. T. asperellum LBKURCC1 is a fungus isolate…
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- 1603111051
Sintesis Dan Uji Toksisitas 4-(3-(4-Fluorofenil)-5-(2-Metoksifenil)-4,5-Dihid…
SUMMARY Pyrazoline is a five ring compound with two heteroatoms that have various biological activities such as anti-inflammatory, antimicrobial, antidiabetic, antimalarial, anticancer, and antioxidant. This study aims to synthesize pyrazoline compounds and test activity. Pyrazoline analog 4-(3-(4-fluorophenyl)-5-(2- methoxyphenyl)-4,5-dihydro-1H-pyrazole-1-yl)benzensulfonamide was obtaine…
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- 1703122425
Sintesis Komposit Zno/Fly Ash Dengan Ekstrak Pelepah Sawit (Elaeis Guineensis…
vi SUMMARY The development of technology and industry has caused environmental pollution. The waste comes from industrial areas such as the textile dye industry. The dyes often used are methylene blue. Methylene blue is a synthetic dye that has toxic because it has a stable compound in the form of an aromatic compound that is difficult to degrade, so it can pose a danger to the environment an…
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- 1703110570
Pengembangan Media Pembelajaran Berbasis Android Menggunakan Aplikasi Instagr…
This study aims to develop android-based learning media using the Instagram application on chemical bonding materials for class X SMA / MA Equivalent. The method used in this research is the research and development method or R&D with the Plomp model consisting of 5 phases; initial investigation phase, design phase, realization/construction phase, validation phase, trial and revision and implem…
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Pengembangan Lembar Kerja Peserta Didik (LKPD) Berbasis Prediction, Observati…
The development of POE2WE-based activity sheet on the subject of acid and base aims to develop a valid activity sheet and determine user responses in learning. The research method used is the research and development (R&D) method by applying a 4D development model which includes Define, Design, Develop and Disseminate, however research to only be carried out until the Develop stage which was fo…
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- 1705122124
Pengembangan Lembar Kerja Peserta Didik (Lkpd) Berbasis Discovery Learning Pa…
The development of Student Worksheets (LKPD) Based on Discovery Learning on stoichiometric material aims to produce valid LKPD and determine user responses. This study uses the Research and Development (R&D) method with the ADDIE development model which is limited to the validation, trial and revision stages. The data collection instruments used were validation sheets and user response question…
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Prarancangan Pabrik Hidrazin Dari Amonia Proses Raschig Dengan Desain Alat Ut…
ABSTRACT Hydrazine is an inorganic compound in the form of a colorless flammable liquid with an odor like ammonia. Hydrazine is mainly used as a foaming agent in the manufacture of polymeric foams, polymerization catalysts and pharmaceuticals. In addition, hydrazine is used in various rocket fuels and in the manufacture of gas precursors used in air bags. Currently, the design of a hydrazine p…
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