Jurnal Akademika Kimia, 11. : 243-246. November 2022 ISSN . 2477-5185 | ISSN . 2302-6030 http://jurnal. id/index. php/jak/ OPEN ACCESS Relevance and Consistency of Lithium Application Learning Media for High School Students on Chemical Equilibrium Material *Dewi Masyitha & Afadil Program Studi Pendidikan Kimia / FKIP Ae Universitas Tadulako. Palu - Indonesia 94119 Received 27 September 2022. Revised 24 October 2022. Accepted 15 November 2022 doi: 10. 22487/j24775185. Abstract Conditions of the Covid-19 pandemic require teachers and students to innovate starting from the preparation, process, and assessment of learning. This study aims to design and determine the relevance and consistency of Lithium application learning media for high school students on chemical equilibrium in the form of e-modules as a solution to reduce misconceptions. This type of research is a part of research and development (R&D) starting from product design to determining its theoretical relevance and consistency by experts. The product produced is in the form of an e-module on chemical balance material using Android with the Lithium application which is used by students in online learning during the Covid-19 pandemic. The instrument used was a questionnaire on the feasibility of learning media, the suitability of the material, and the Lithium application. The results of the evaluation of the media expert validator and the material expert respectively obtained the value of relevance and consistency of 3. ery vali. This means that the Lithium application can be used as an online learning medium by utilizing Android as a solution to reduce high school students' misconceptions of chemical equilibrium material. Keywords: Lithium applications, learning media, chemical equilibrium Introduction Technology creates opportunities for innovation and development of learning media that makes valuable contributions to various institutions and is considered the future of education (Abaidoo & Arkorful, 2014. Haleem et al. , 2. In the current era of globalization, learning tools are very important to support a good and effective learning process (Carreon, 2018. Malik, 2. The use of media in education plays an important role in the learning process. Learning media can help teachers optimize the learning process, and concrete concepts, motivate students, and bridge critical thinking skills (Masykur, 2. The role of independent learning media during the Covid-19 pandemic is urgently needed by teachers and students in the learning process. The use of multimedia in the learning process can be applied to the preparation of teaching materials. Student Worksheets (LKPD), and the assessment process (Suryani, 2020. Hasanah et al. , 2. One of the independent learning media that can be used by teachers and students via Android is the application Lithium. Learning media that make use of the Lithium application is an application that makes it easy for students to open, read, and manage digital books. The Lithium application can open books or learning modules to make it easier for students to learn at home, school, and anywhere. This application has various types of features, including: . Lithium can scan files that are compatible with smartphones. This application makes it easy for students to learn online without having to search for books manually, . this application is included in the EPUB (Electronic Publicatio. Reader. EPUB is an international open document format for digital publication which is increasingly being used because it has no license restrictions and is easy to use, and . the Lithium application functions as a long-term file storage in the form of text, metadata, and multimedia contained in EPUB files that can be easily exported to another file format (Chang. Therefore, the use of Lithium application learning media can be used by teachers in developing teaching materials and assessment processes online. This research is to develop learning media for applications Lithium by utilizing technology on Android by designing and validating the media so that it can be used as a solution in reducing the misconceptions of high school students on chemical balance material. c *Correspondence: Dewi Masyitha e-mail: dewimasyitha08@gmail. A 2022 The author holds the copyright of this article. This article is published under Creative Commons Attribution-NonCommercial-ShareAlike 4. 0 International terms, which permit unlimited non-commercial use, distribution and reproduction in any media, provided the original work is properly cited. Dewi Masyitha & Afadil Method The type of research is Research and Development (R & D). Sugiyono . explains that R & D is a type of research used to produce certain products and test the quality of these According to Nieveen . , one of the qualities of learning products is it a model, method, or strategy must have validity that includes relevance . ontent validit. and consistency . onstruct This research was conducted at the Chemistry Education Study Program. FKIP. Tadulako University. Palu. The results of the emodule design in the Lithium application are then theoretically validated. The instruments used were in the form of a feasibility questionnaire for instructional media, the suitability of the material, and the Lithium application which were assessed by media expert validators and chemists. The research design was adapted from the Research and Development (R & D) stage of research referring to the stages of Borg and Gall . which were modified by Sukmadinata . following the stages: . preliminary study, . testing/implementation. And this research was conducted up to product validation to determine the validity of the product in reducing student misconceptions about chemical equilibrium Validation data from media experts and material experts are categorized based on the degree of validity reference. Table 2. Data on the results of the validation of instructional media experts. Assessment Average per Category Aspect Aspect of Technical Valid Quality Media Aspect Valid Average Valid Aspects of technical quality assessment obtained an average of 3. the aspect of media assessment obtained an average of 3. so the total average validation of instructional media experts is 15 in the valid category. Table 3. Data on the results of the validation of material experts Average per Assessment Category Aspect Aspect of Valid Media Material Valid Conformity Average Valid Aspects of media assessment obtained an average of 3. the aspect of conformity assessment of the material obtained an average of 3. so the total average validation of material experts is 3. 00 in the valid category. Table 1. Criteria and category degree of validity Criteria Category 25