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EduChemia
ISSN 2502-4779 · Universitas Sultan Ageng Tirtayasa · 228 artikel di indeks
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Artikel Jurnal
Characteristics of Mathematical Modeling Module on Seawater Boiling Point Elevation
Students often treat chemistry and mathematics as separate subjects when they learn colligative properties, using mathematics mainly as a calculation tool rather than for conceptual understanding. This separation limits their ability to connect mathematical reasoning with chemical concepts and…
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Artikel Jurnal
Development of STEM-Based Solar-Powered Robotics Media for Learning Energy Conversion and Basic Electrochemistry
Elementary school students’ understanding of energy concepts remains limited due to their abstract nature and the lack of contextual learning experiences. In basic chemistry education, the concepts of energy conversion and electrochemistry are important for introducing the relationship between…
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Artikel Jurnal
Synthesis and Characterization of TiO2/Ni for Photoelectrochemical Dopamine Sensors
Dopamine (4-(2-aminoethyl) benzene-1,2-diol) is an essential biomarker for the diagnosis of neurological disorders. Owing to the increasing prevalence of diseases associated with low dopamine levels, the development of fast and simple detection methods has become crucial. The photoelectrochemical…
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Artikel Jurnal
Optimization of Citric Acid Addition on The Effect of Reducing Aflatoxin B1 Levels in Animal Feed
Aflatoxin B1 contamination in animal feed poses a serious threat to animal and human health, as this compound can cause dangerous toxic effects. The aflatoxin decontamination process in animal feed is a crucial step in maintaining food safety and livestock health. One effective method of aflatoxin…
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Artikel Jurnal
Diagnostic Analysis of Misconceptions in Alkenes and Alkynes Using a Three-Tier Test
This study aims to analyze students' misconceptions on the topics of alkenes and alkynes in organic chemistry learning using a three-tier diagnostic test based on the certainty of response index (CRI). The research subjects consisted of 39 chemistry education students. The test instruments included…
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Artikel Jurnal
Optimization of KOH Catalyst Concentration and Reaction Temperature for Biodiesel Production from Waste Cooking Oil
This study aims to analyze the effects of variations in the KOH catalyst concentration and reaction temperature on the yield and characteristics of biodiesel produced from waste cooking oil through a transesterification process. The KOH catalyst concentration was varied at 0.5%, 1%, and 1.5%, while…
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Artikel Jurnal
Assessing a Diagnostic Test for Theories of Acid-Base Solutions: a Banjarmasin Study
Misconceptions regarding acid and base solution learning remain a challenge, but the assessment instruments used are still unable to evaluate students’ in-depth understanding. The following study aims to develop a four-tier diagnostic test for acid and base solutions, an assessment instrument in…
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Artikel Jurnal
Theoretical Analysis of Iron Corrosion Inhibition by Phytocasins using Density Functional Theory (DFT) Method
Phytocasin is a group of phytoalexin compounds that are synthesized and accumulate in plant cells after microbial infection. In this study, the Gaussian 16 W program package with the density functional theory (DFT) calculation method and the B3LYP/6-31G basis sets were used. The inhibitor molecules…
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Artikel Jurnal
Development of E-Assessment to Measure Critical Thinking in Chemistry Learning
The quality of learning is directly related to quality of assessment. In education, assessment is also referred to as evaluation. The purpose of this study is to develop a practical e-assessment to evaluate critical thinking skills that can be applied efficiently to meet the needs of teachers and…
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Artikel Jurnal
Surfactant-Controlled Synthesis of Mesoporous Silica from Oil Palm Empty Fruit Bunch
Indonesia is the country that produces the most palm oil worldwide, generating large amounts of oil palm empty fruit bunch (EFB) waste containing silica. The use of EFB waste as a silica precursor offers a sustainable alternative to conventional synthetic sources. Therefore, this study aims to…
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Artikel Jurnal
Development of STEM-Integrated Microlearning E-Module To Enhance Students’ Creative Thinking Skills
The development of 21st-century learning demands innovative, contextual, and technology-integrated digital teaching materials to support the enhancement of students’ creative thinking skills. This study aimed to develop a STEM-integrated microlearning e-module (Science, Technology, Engineering, and…
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Artikel Jurnal
Synthesis of Biodiesel from Used Cooking Oil Using Composite Photocatalyst from Milkfish Bones And TiO2
The increasing number of vehicles in Indonesia has increased air pollution and fuel consumption. The fuels commonly used come from fossil, the availability of which is limited. One solution that can be applied is switching to alternative energy, such as biodiesel from vegetable oils, including used…
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Artikel Jurnal
Chemistry Pre-Service Teachers’ System Thinking Skill in The Green Chemistry Context
Systems thinking is a crucial skill for achieving sustainability goals. Previous studies indicate that students’ systems thinking skills in Indonesia remain low. Using a green chemistry approach, chemistry teachers play a role in equipping students with systems thinking skills. Therefore, chemistry…
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Artikel Jurnal
Phosphate Accumulation Using MgO-Fe3O4/Agarose/Oxalic Acid Gel as a Diffusive Gradient in Thin Films (DGT) Binding Layer
Monitoring phosphate concentration in waters is critical because excessive phosphate can lead to the death of aquatic organisms. Phosphate can be monitored via a passive sampler called Diffusion Gradient in Thin Films (DGT). This study combines MgO and Fe3O4 impregnated in agarose crosslinked with…
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Artikel Jurnal
Identifying Students’ Understanding Levels and Sources of Misconceptions in Acid–Base Concepts Through a Five-Tier Diagnostic Test
Identifying misconceptions experienced by students is an important step in understanding learning difficulties and designing more effective learning strategies. This study aims to analyze the level of understanding, misconceptions, and learning sources that cause students' misconceptions on…
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Artikel Jurnal
A Facile Way to Elevate the Ag3PO4 Photocatalyst Performances Using Ethanol-Based Sacrificial Agent: A Short Investigation
The photocorrosion effect of the catalyst is one of the bottlenecks in the potential application of the visible-light-driven Ag3PO4 photocatalyst. This brief investigation suggests straightforward, cost-effective methods to enhance the stability and visible-light photocatalytic activity of the bare…
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Artikel Jurnal
Content Validity of Assessment Instrument and Storyboard Two-Tier Virtual Reality (TTVR) in Acid Base Material
The aim of this research is to analyze the content validity of the TTVR assessment instrument for acid‒base materials based on the Aiken validity index. This ensures that the instrument can effectively measure what it intends to assess. Content validity data were obtained from seven experts…
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Artikel Jurnal
AI-Powered Automated Assessment: Aiken Index Analysis of Content Validity Scientific Literacy Asesment
This study aims to analyze the content validity of the Scientific Literacy Asesment (SLA) instrument, which integrates ethnochemistry based on artificial intelligence through expert agreement based on the Aiken index so that the instrument can measure what should be measured. The research method…
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Artikel Jurnal
Effectiveness of STEM-Based Problem-Based Learning Model on Students' Critical Thinking Abilities on Acid-Base Material
Educational developments in the 21st century emphasize the importance of students developing higher-order thinking skills. However, current learning models tend to be teacher-centered and emphasize memorization, thus limiting students' opportunities to analyze, evaluate, and make logical…
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Artikel Jurnal
Smart-Coating Corrosion Inhibitor for Carbon Steel Using LDH Modified with Laundry Detergent Waste
This research was conducted with the aim of reducing environmentally harmful detergent waste while utilizing its anionic surfactant content for the development of Zn-Al LDH composites with benzimidazole as a smart corrosion inhibitor for low-carbon steel, providing dual protection. The samples used…