Uji Kepolaran Ekstrak Buah Impor Menggunakan Alat Sederhana Berbasis Listrik untuk Pembelajaran Kimia

Regina Gresella Br Panjaitan; Agnes Yuniarty Simbolon; Dwi Rahmanisa; Efrio Angelina Sitio; Gavril Orlando Tumio Manalu; Rode Juwita Sinaga; Vebilla May Ningsih; Iis Siti Jahro

doi:10.59061/jsit.v8i2.1234

Authors

Regina Gresella Br Panjaitan Universitas Negeri Medan
Agnes Yuniarty Simbolon Universitas Negeri Medan
Dwi Rahmanisa Universitas Negeri Medan
Efrio Angelina Sitio Universitas Negeri Medan
Gavril Orlando Tumio Manalu Universitas Negeri Medan
Rode Juwita Sinaga Universitas Negeri Medan
Vebilla May Ningsih Universitas Negeri Medan
Iis Siti Jahro Universitas Negeri Medan

DOI:

https://doi.org/10.59061/jsit.v8i2.1234

Keywords:

Chemistry Learning, Covalent, Imported Fruits, Polarity, Static Electricity

Abstract

Polarity is an essential concept in chemistry, but many students struggle to grasp it, necessitating the use of a simple learning medium. This study aims to examine the polarity levels of extracts from ten imported fruits, including Fuji apple, kiwi, strawberry, Sunkist orange, grape, pear, date, blueberry, cherry, and dragon fruit, using a static electricity-based device. The device was created using simple materials, making it practical for use in chemistry lessons. Its working principle is based on the deflection of liquid droplets, which are influenced by static electric charges on mica. The results showed that most extracts experienced varying degrees of deflection. Strawberry, pear, and kiwi exhibited strong deflection due to the presence of polar compounds, while apple, cherry, and grape demonstrated moderate deflection. Blueberry could not be tested due to its high viscosity. This study presents a straightforward learning tool to help students better understand the polarity of covalent compounds, providing an accessible approach to learning complex chemistry concepts.

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