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]
The 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
doaj +2 more sources
High School Students’ Mental Models on Chemical Equilibrium
: Chemical equilibrium knowledge has many abstract concepts that often lead to alternative conceptions and misconceptions. One way that can be used to find out students’ conceptions is to identify their mental models.The purpose of this study was to ...
Hilya Ulinnaja +2 more
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STUDENTS’ CHEMICAL LITERACY PROFILE ON CHEMICAL EQUILIBRIUM MATERIAL: A CASE OF CORAL REEFS TOPIC
Nowadays, chemical literacy is something important to discuss, including the benefits of chemical literacy itself. It can be the main purpose for teachers, experts, and curriculum policymakers.
Faiz Ilham Pratama +2 more
doaj +3 more sources
Theoretical Modeling of Chemical Equilibrium in Weak Polyelectrolyte Layers on Curved Nanosystems. [PDF]
Gonzalez Solveyra E +3 more
europepmc +3 more sources
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
doaj +1 more source
Calculation of complex chemical equilibrium compositions of composite rocket propellants combustion products [PDF]
An adequate method for calculating chemical equilibrium in a predominantly gaseous, multi-component reactive mixture was investigated and successfully applied.
Filipović Miloš, Kilibarda Nikola
doaj +3 more sources
Ion-Induced Synthesis of Alginate Fibroid Hydrogel for Heavy Metal Ions Removal
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
doaj +1 more source
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]
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
doaj +1 more source
The calculation of theoretical energetic performances of composite rocket propellants [PDF]
A suitable method for calculating theoretical energetic performances of a composite propellant was investigated and successfully verified. This method is based on generally accepted hypotheses, consistent and simple calculation of the chemical ...
Filipović Miloš, Kilibarda Nikola
doaj +3 more sources

