Pengembangan E-LKPD Berbasis PBL Dengan Pendekatan Etnosains Untuk Meningkatk…

The various problems that exist in Indonesia today reflect the loss of national character values. The role of the school as a place for the formation of student character is considered important and has considerable influence. Teachers are required to be able to continue to develop themselves and be role models for students to form good character. The character of caring for the environment of …

Pengembangan E- Instrumen Penilaian Untuk Mengukur Kemampuan Berpikir Kritis…

This research aims to develop an instrument for assessing students' critical thinking abilities and science process skills on chemical equilibrium material that is valid and reliable and to determine the differences in the results of measuring students' critical thinking abilities and science process skills on chemical equilibrium material at high, medium and low schools. This research uses th…

Pengembangan Media Pembelajaran Kimia Unsur Berbasis Web menggunakan Sitepad …

The purpose of this research is to determine the increase in learning independence and media self-efficacy using media. This website is designed on elemental chemistry. Research into the development of web-based learning media on chemical element material hopes to provide real descriptions so that students are aware, for example, of the subject of making elements and the use of chemical element…

Kombinasi Biosorben Serbuk Buah Jabon Putih (Anthocephalus Cadamba Miq.) Deng…

White jabon fruit (Anthocephalus cadamba Miq.) has the potential to be used as a biosorbent because it contains cellulose which can be enhanced by activation. Activation in this study using NaOH and combined with humic compounds from peat water such as humic acid is expected to increase the surface area and increase the active sites on the biosorbent. This study aims to determine the efficiency…

Pengaruh Variasi Logam Mulia Sebagai Promotor Terhadap Aktivitas Katalis Ni2p…

The diverse catalytic activity obtained from Ni2P-noble metal catalysts in the hydrodeoxygenation reaction. The influence of using noble metal promoters such as platinum, iridium, palladium, and ruthenium on Ni2P catalysts in hydrodeoxygenation reactions with various compounds is still not fully understood, thus further research is needed to comprehend these effects. The purpose of this study i…

Pemanfaatan Lignin Dari Limbah Black Liquor Tandan Kosong Kelapa Sawit (Tkks)…

Lignin is a natural polymer that was soluble in water and had active groups such as carboxyl, hydroxyl, and methoxy. Aerogel is a solid material with a three-dimensional structure that had high porosity and formed from hydrogel, which was held together by a small portion of hydrophilic polymer chains and cross-links that form a network and was then processed through freeze drying. This research…

Uji Aktivitas Antimikroba Dan Stabilitas Bacteriocin-Like Inhibitory Substanc…

Lactic acid bacteria (LAB) are widely used in the fermentation process of various food products such as yogurt, kefir, and cheese. LAB are Gram-positive, catalase- negative, non-spore-forming bacteria that are resistant to low pH. The major end product of LAB metabolism is lactic acid, and other products include organic acids and bacteriocins (nisin), which have antimicrobial properties. Lactoc…

Sintesis Cryptomelane Dari Kmno4 Dan Glukosamenggunakan Metode Pengendapan : …

Manganese oxide is an effective strong oxidizer because it has oxygen that is easily released. Manganese oxides have hollow and layered structures such as MnO2, Mn3O4, Mn2O3, MnO. Manganese oxide synthesis can be done by sol-gel, reflux, hydrothermal, ceramic, and precipitation methods. Manganese oxide can be used as a catalyst to degrade waste organic compounds such as methylene blue dye. Cryp…

Perbandingan Performa Antara Treatment Hydrochloric Acid dan Carboxylic Acid …

Duri Steam Flood is the largest hot steam injection project in Indonesia, so efforts are needed to prevent the decline in production rates. Well layers x, yz in the Duri Field have experienced a decrease in production due to sedimentation, after testing the formation water using the Stiff and Davis method. Based on the Stability Index (SI) value which is greater than 0, namely 1.431, scale tend…

Pengaruh E-scaffolding dalam Pembelajaran Inkuiri Terbimbing Terhadap Pemaham…

This research aims to find out the differences in conceptual understanding and critical thinking skills between students who are taught by guided inquiry learning with e-scaffolding and those who are taught by guided inquiry in terms of initial abilities in reaction rate material. The e-scaffolding contained in the guided inquiry step is used as assistance in the form of structured questions, c…

Pengaruh Efikasi Diri Dan Kemandirian Belajar Peserta Didik Terhadap Prestasi…

Pendidikan terus mengalami perkembangan dan sangat penting bagi kehidupan karena mampu menciptakan kualitas sumber daya manusia (SDM) yang mumpuni. Penelitian ini dilatarbelakangi oleh efikasi diri dan kemandirian belajar peserta didik dalam pembelajaran kimia di SMAN 15 Pekanbaru. Tingkatan efikasi diri dan kemandiran belajar peserta didik tidak terlihat dengan jelas selama proses pembelajaran…

Pengembangan Media Pembelajaran Menggunakan Web Google Sites Pada Materi Ko…

Teknologi informasi dan komunikasi merupakan salah satu faktor pendukung yang tidak bisa dilepaskan dalam dunia pendidikan. Bahkan mutu pendidikan diukur melalui penyesuaian perkembangan teknologi informasi dan komunikasi di dalam segala proses yang ada salah satunya pada proses belajar mengajar. Keberhasilan suatu proses belajar mengajar pada hakikatnya terletak pada efisiensi peran seorang gu…

Analisis Persepsi Peserta Didik Terhadap Hasil Belajar Ikatan Kimia…

Kurikulum merdeka belajar adalah kurikulum yang menuntut peserta didik untuk memiliki kemandirian, yaitu tiap – tiap peserta didik diberikan kebebasan guna mengakses ilmu yang diperoleh dari pendidikan formal maupun non formal dalam mengembangkan potensi yang ada pada dirinya. Pada kurikulum merdeka, lebih menekankan pada pembentukan karakter peserta didik yang sesuai dengan profil pelajar Pa…

Pengembangan E-Modul Interaktif Menggunakan Flip Pdf Professional Pada Materi…

This research aims to determine the validity and user response to the development of an interactive e-module using Flip PDF Professional on chemical bond material for class X SMA/MA equivalent. The type of research used is Research and Development (R&D) with a modified ADDIE development model. The test subjects in this research were three chemistry teachers and twenty students who had studied c…

Prarancangan Pabrik Benzotriklorida Dari Toluen Proses Klorinasi Dengan Desai…

Benzotrichloride was a derivative of toluene. Benzotrichloride was widely used in the synthetic dye industry, organic synthesis, as an intermediate in the chemical industry, in the production of benzoyl chloride, chlorinated toluenes, benzotrifluoride, benzoic acid, and as an intermediate for dyes. The demand for benzotrichloride in Indonesia and globally continued to increase, giving the benzo…

Perancangan Pabrik Asam laktat Dari Molases Kapasitas 6.000 Ton/Tahun Dengan …

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170711140

Analisa Residual Carbonat Menggunakan Metoda Ahlstrom Dan Econotech

This report presents an analysis of carbonate residuals in limestone used by PT Riau Andalan Pulp and Paper in the pulp and paper production process, using two test methods: Ahlstrom and Econotech. The background to this research is based on the importance of limestone quality as the main raw material in production as well as the company's need to ensure efficiency and quality of production res…

Pengaruh Variasi Waktu Hidrotermal Pada Sintesis Zeolit Dari Lempung Maredan …

Maredan clay located in the western part of Maredan Village, Siak Regency, Riau Province has potential as a raw material for zeolite synthesis. This study aims to determine the characteristics of the synthesized zeolite and determine the optimum contact time of zeolite in adsorbing lead (II) ions. Zeolite synthesis was carried out using hydrothermal alkali fusion method with time variation of 5…

Kombinasi Serbuk Buah Jabon Putih (Anthocephalus Cadamba Miq.) Dengan Air Gam…

White jabon fruit powder (Anthocephalus cadamba Miq.) can be used as a biosorbent because it contains cellulose. The white jabon fruit powder was activated with NaOH and combined using peat water to increase the surface area and multiply the active sites on the biosorbent. This study aims to determine the biosorbent dose, pH, pHpzc and optimum contact time of the combination of white jabon frui…

Optimasi Konsentrasi Aktivator Dan Ph Adsorben Arang Kulit Durian (Durio Zibe…

Durian peel contains high levels of cellulose, namely around 50-60%. This shows that durian peel is not just a waste, but it can produce activated carbon. This research aims to identify the effect of activators on the characteristics of durian peel carbon and determine the optimum pH for the adsorption activated carbon from durian peel on chromium (III) metal. Durian peel was converted into car…