Results 1 to 10 of about 1,118,373 (277)
2,2,3,3,4,4,4-Heptafluorobutyl Acetate—Chemical Equilibrium and Kinetics of the Esterification Reaction of 2,2,3,3,4,4,4-Heptafluorobutan-1-ol and Acetic Acid in the Presence of an Acidic Catalyst [PDF]
MoleculesThe kinetics and chemical equilibrium of the esterification reaction of acetic acid (AAc) and 2,2,3,3,4,4,4-heptafluorobutan-1-ol (HFBol) (using sulfuric acid as a catalyst) are determined experimentally.
Andrei V. Polkovnichenko +5 more
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Science Education International, 2023 The goal of this study was to assess students’ level of conceptual understanding of chemical kinetics and equilibrium using topic-specific pedagogical content knowledge (TSPCK)-based instruction in chemistry grade 11 students.
Kassahun Dejene , Woldie Belachew
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Calculation of complex chemical equilibrium compositions of composite rocket propellants combustion products [PDF]
Journal of the Serbian Chemical Society, 2000 An adequate method for calculating chemical equilibrium in a predominantly gaseous, multi-component reactive mixture was investigated and successfully applied.
Filipović Miloš, Kilibarda Nikola
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Ion-Induced Synthesis of Alginate Fibroid Hydrogel for Heavy Metal Ions Removal
Frontiers in Chemistry, 2020 Design and synthesis of environmentally friendly adsorbents with high adsorption capacities are urgently needed to control pollution of water resources. In this work, a calcium ion-induced approach was used to synthesize sodium alginate fibroid hydrogel (
Chuncai Kong +5 more
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Journal of Educational Chemistry, 2021 The purpose of this research is to produce virtual laboratory media to support laboratory-based learning with the features mentioned above to make students become scientists with comprehensive understanding competencies and laboratory engineering skills.
Deni Ainur Rokhim, Maya Oki Septiani
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Analysis of the chemical equilibrium of combustion at constant volume [PDF]
INCAS Bulletin, 2014 Determining the composition of a mixture of combustion gases at a given temperature is based on chemical equilibrium, when the equilibrium constants are calculated on the assumption of constant pressure and temperature.
Marius BREBENEL
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Estimation of Concentrations in Chemical Systems at Equilibrium Using Geometric Programming [PDF]
Journal of Chemical and Petroleum Engineering, 2017 Geometric programming is a mathematical technique, which has been developed for nonlinear optimization problems. This technique is based on the dual program with linear constraints.
Saeedeh Ketabi +2 more
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Molecules, 2020 Organosulfur compounds are widely used for the manufacture of drugs and materials, and their synthesis in general conventionally employs nucleophilic substitution reactions of thiolate anions formed from thiols and bases.
Mieko Arisawa, Masahiko Yamaguchi
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Development of student’s initial ability test based on generic science skills
Jurnal Inovasi dan Teknologi Pembelajaran, 2023 : Penelitian ini bertujuan untuk mengembangkan instrumen tes kemampuan awal berbasis keterampilan generik sains pada materi kesetimbangan kimia. Penelitian ini menggunakan model pengembangan 4D yaitu Define, Design, Development dan Disseminate. Instrumen
Natalia Valentina Pane +1 more
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Hydrogenated borophene enabled synthesis of multielement intermetallic catalysts
Nature Communications, 2023 Supported metal catalysts often suffer from rapid degradation under harsh conditions due to material failure and weak metal-support interaction. Here we propose using reductive hydrogenated borophene to in-situ synthesize Pt/B/C catalysts with small ...
Xiaoxiao Zeng +12 more
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