Gnanamani Simiyon G
Articles written in Resonance – Journal of Science Education
Volume 23 Issue 6 June 2018 pp 683-691 General Article
‘Double displacement reactions’ are commonly observed insolutions and aqueous phase. They are less common in solidphase and generally requires high temperature to take place.However, in this article, we report double displacement reactionstaking place in solid phase at room temperature. Wealso highlight the criteria required for the occurrence of displacementreactions in solid state at room temperature. Thedriving force for all the double displacement reactions is explainedusing Pearson’s hard and soft acid and base (HSAB)concept, and in few cases involvement or aid of water of hydrationis observed.
Volume 27 Issue 4 April 2022 pp 681-686 Classroom
Green and sustainable methods have sparked great interest lately. Action green starts from our laboratories, where young minds observe and understand the need for safer and sustainable methods. Complexometric estimation requires ammonium buffer to maintain high pH. This article explains a green method by replacing ammonium buffer and later highlights its advantage.
Volume 27 Issue 11 November 2022 pp 1985-1992 Classroom
A simple low cost demonstration for the school and under-graduate students to explain the thermodynamics of condensation and evaporation process.
Volume 28 Issue 3 March 2023 pp 475-478 Classroom
Periodic table consists of elements arranged based on theiratomic number to understand their properties. Many periodic table representations have been reported, but the position of hydrogen and f-block elements remains unclear. We report here a simple ‘Christmas tree model’ as an alternativeto the modern periodic table.
Volume 28 Issue 4 April 2023 pp 659-664 Classroom
Writing electronic configurations of elements with higher atomic numbers is tedious. Students often find it difficult to remember the energy level order to write the electronic configuration of elements. This article introduces a simpler method to write the electronic configuration of elements and ions. The proof presented here is one without words but colours, with the assistance of dynamic geometric software.
Volume 28 Issue 5 May 2023 pp 817-822 Classroom
One of the common physical chemistry experiments carried out in undergraduate programs is the determination of the partition coefficient (Ko) in which a solute is distributed between organic and aqueous layers. After the experiment, the used-up organic layer and stock organic layer are discarded without proper measure, which poses a serious threat to our environment. In this article, we propose a simple, cost-effective and environment-friendly method to recycle the organic solvent used during the experiment.
Volume 28 | Issue 9