Uncovering Students' Understanding; Evidence For The Teaching of Acid-Base Properties of Salt Solution

2022 ◽  
Vol 33 (1) ◽  
pp. 64
Author(s):  
Habiddin Habiddin ◽  
Devi Fauziah Kurnia Akbar ◽  
Isnatul Husniah ◽  
Prima Luna
Keyword(s):  
Salt Solution ◽  
Acid Base ◽  
Base Properties

<p>Este estudio tuvo como objetivo descubrir la comprensión científica y no científica de los estudiantes sobre el tema de las propiedades ácido-base de la solución salina. Este estudio descriptivo involucró a 300 estudiantes de tres escuelas secundarias públicas en Malang, Java Oriental, Indonesia. El instrumento de cuatro niveles en el tema desarrollado y considerado válido de nuestro trabajo anterior se utilizó para la recopilación de datos. Se encuentra que la comprensión científica de algunos conceptos por parte de los estudiantes es sólida. Sin embargo, también se descubrieron algunos conocimientos no científicos. También se discute la implicación para la enseñanza del tema.</p>

scholarly journals Development of a Four-Tier Instrument of Acid-Base properties of salt Solution

2020 ◽  
Vol 4 (1) ◽  
pp. 51
Author(s):  
Habiddin Habiddin ◽  
Devita Novi Ameliana ◽  
Muhammad Su’aidy
Keyword(s):  
Salt Solution ◽  
Acid Base ◽  
School Students ◽  
Chemistry Teachers ◽  
Public Secondary School ◽  
Depth Analysis ◽  
Chemical Concepts ◽  
Valid Instrument ◽  
Development And Validation ◽  
Base Properties

Many chemistry teachers claimed that identifying students' understanding genuinely is challenging due to the limited time available, and the overload works faced. Therefore, constructing an efficient and valid instrument to overcome this difficulty is a must. This study is a part of the big project to produce a robust four-tier instrument to identify students' conception of acid-base properties of salt solution (FTI-ABPS2). The project involved six groups of researchers, and each group carried out the study in 6 different participant groups and schools. This paper outlines the development and validation of a four-tier instrument of Acid-Base properties of salt Solution involving public secondary school students in Malang Regency. The instrument was constructed using the procedure as carried out by Habiddin & Page (2019). Twenty-eight questions were constructed for the instrument. The results show that the instrument is valid and reliable to be implemented further. In-depth analysis regarding content validity, as well as the empirical validity of the instrument in light with the characteristic of chemical concepts (acid-base properties of salt solution in particular), is also discussed.

scholarly journals Building scientific explanation: A study of acid-base properties of salt solution

2021 ◽  
Author(s):  
Habiddin Habiddin ◽  
Atikah Atikah ◽  
Isnatul Husniah ◽  
Aceng Haetami ◽  
Maysara Maysara
Keyword(s):  
Salt Solution ◽  
Scientific Explanation ◽  
Acid Base ◽  
Base Properties

Acid-base properties of 1,3-diphenyl-5-(1H-tetrazol-2-yl)formazan and 1,3-diphenyl-5-(2H-1,2,4-triazol-3-yl)formazan

1982 ◽  
Vol 47 (11) ◽  
pp. 2882-2889
Author(s):  
Nadezhda Likhareva ◽  
Ladislav Šůcha ◽  
Miloslav Suchánek
Keyword(s):  
Computer Program ◽  
Dissociation Constants ◽  
Acid Base ◽  
New Compounds ◽  
Base Properties

Two new compounds from the formazan series, viz. 1,3-diphenyl-5-(1H-tetrazol-2-yl)formazan and 1,3-diphenyl-5-(2H-1,2,4-triazol-3-yl)formazan, were prepared, and the dissociation constants and molar absorptivities of all of their acid-base species were determined spectrophotometrically employing the SPEKTFOT computer program.

Acid-base properties of metals and glasses of Na2O.P2O5-xB2O3 system

1984 ◽  
Vol 49 (10) ◽  
pp. 2355-2362 ◽  
Author(s):  
Juraj Leško ◽  
Marie Dorušková ◽  
Jan Tržil
Keyword(s):  
Boron Oxide ◽  
A Priori ◽  
Optical Basicity ◽  
Galvanic Cell ◽  
Acid Base ◽  
Tetrahedral Configuration ◽  
Relative Basicity ◽  
Base Theory ◽  
Base Properties

Boron oxide in the Na2O.P2O5-x B2O3 system behaves as a Lux base. Its addition to Na2O.P2O5 brings about transformation of a Co(II) indicator from octahedral to tetrahedral configuration, increase in the optical basicity ΛPb(II), increase in the relative basicity of the melt as determined by means of a galvanic cell, and depolymerization reactions releasing PO43- ions. In the Na2O-B2O3 system free of P2O5, boron oxide behaves as a Lux acid. The amphoretic nature of B2O3 is explained in terms of Lux's acid-base theory extended in analogy with the protolysis theory. The theoretical optical basicity values do not indicate the amphoretic behaviour of B2O3 because in this approach boron oxide is a priori regarded as more acidic than Na2O.P2O5.

Acid-base properties and supramolecular structure ofN-[(hydroxymethyl)triazolyl]triflamides: DFT, ab initio, and FTIR study

2016 ◽  
Vol 30 (5) ◽  
pp. e3623 ◽  
Author(s):  
Bagrat A. Shainyan ◽  
Nina N. Chipanina ◽  
Larisa P. Oznobikhina ◽  
Vladimir I. Meshcheryakov
Keyword(s):  
Ab Initio ◽  
Supramolecular Structure ◽  
Acid Base ◽  
Ftir Study ◽  
Base Properties
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