Analysis of Students’ Comprehension and Misconception towards the Topic of Salt Solubility

Pub Date : 2020-05-31 DOI:10.30870/jppi.v6i1.7324
Sabila Izzati, N. Rochmah
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引用次数: 5

Abstract

This study aimed to analyze students’ comprehension and misconception towards the topic of salt solubility both on the level of microscopic representation and understanding. This study utilized essay diagnostic test as instrument s and interview s based on a case study of 10 students in grade 11 at senior high school in Bogor who were given 8 questions regarding salt solubility. The results showed that there was a misconception, 40% of the students misled in drawing microscopically the system of salt and sugar solubility and 50% of the students incorrectly drew the system due to the absence of interaction between salt particle and water, while 10% of the students sketched correctly though it is difficult to notice the result of salt ionization on the solvent. Moreover, 80% of the students were unable to find a link between the alteration system of solvent equilibrium caused by additional salt with various solvents on the macroscopic concept of an insoluble salt equilibrium system and the effect of adding similar ions on the equilibrium system.
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学生对盐溶解度问题的理解与误区分析
本研究旨在分析学生在微观表征和理解层面对盐溶解度主题的理解和误解。本研究采用论文诊断测试作为工具,并以10名茂物高中11年级学生为研究对象,进行了8道关于盐溶解度的问题访谈。结果表明,存在一种误解,40%的学生在微观上对盐和糖的溶解度体系进行了误导,50%的学生由于盐颗粒与水之间没有相互作用而画错了体系,而10%的学生虽然很难注意到盐电离对溶剂的影响,但画对了。此外,80%的学生在不溶性盐平衡体系的宏观概念上找不到各种溶剂加盐引起的溶剂平衡改变体系与加入相似离子对平衡体系的影响之间的联系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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