Pengaruh Suhu Kalsinasi dan Waktu Kukus Terhadap Aktivasi Limbah Praktikum Isotherm Freundlich Di Laboratorium Kimia Analitik

Lasia, I Ketut; Wiratini, Ni Made

doi:10.24252/al-kimia.v8i1.7635

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…The development and application of chemistry does not only required theoretical learning but also experimental work with a certain standard which provides a better understanding for the students' (Anggraini, 2016;Faika & Side, 2011). This statement is in line with previous study, who stated that students' could acquire first-hand experience and improve scientific attitude through lab work as well as storing the knowledge for the long term (Lasia, 2013;Rustaman et al, 2005). The pandemic of Covid-19 has affected every aspect of human life around the world, especially in the education sector (Crawford et al, 2020;Fauzi, 2020).…”

Section: Introductionsupporting

confidence: 89%

Practical Guide for Determining the Reaction Rate and Reaction Order Based on the Colorimeter® Application

Wafiq

Melati

Erlina

et al. 2022

JPKI

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The practical activities needed in chemistry lessons. However, during the covid-19 pandemic, a suitable practical guide is needed. Therefore, a practical guide that can involve students directly in practical activities in online learning and blended learning is needed. The purpose of this study is to determine the feasibility of the Practical Guide for Determining Reaction Rate and Reaction Order Based on the Colorimeter® Application based on expert judgement and students’ response. This study employs a research and development (R&D) using 4D(Four-D) model, starting from define, design, develop, and dissemination stages. This research is limited to the develop stage due to the limited time and ability of the researcher. The subject of this study was a practical guide which was tested to 6 students in the initial trial and 20 students of Chemistry Education FKIP Untan in the main trial. Data collection tools used are the feasibility assessment sheets and students’ response questionnaires. The results of expert assessment using the Gregory test closeness model indicate a very feasible criteria with the validity value of 1.00 which in a very high level in terms of the feasibility of the content, language, and graphics. The result of the initial trial and main trial obtained an average percentage of 91% and 94% respectively with very good criteria. The results of this study imply that the practical guide developed is suitable for use in the practical activities. In addition, the practical guide has an attractive appearance and can be used in practical activities to support students’ understanding of reaction rates’ concepts.

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Section: Introductionsupporting

confidence: 89%

Practical Guide for Determining the Reaction Rate and Reaction Order Based on the Colorimeter® Application

Wafiq

Melati

Erlina

et al. 2022

JPKI

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“…Hal ini sesuai dengan petunjuk praktikum mampu memperkaya wawasan, pengalaman, dan pengetahuan pembacanya. Selain itu, buku pengayaan kimia yang dikembangkan sesuai dengan peristiwa atau aplikasi yang ada di lingkungan sekitarnya (Lasia & Wiratini, 2016). Hal ini sejalan dengan bahwa konsep pembelajaran kontekstual merupakan konsep belajar yang membantu guru mengaitkan antara materi yang diajarkan dan situasi dunia nyata siswa dengan mendorong siswa membuat hubungan antara pengetahuan yang dimilikinya dengan penerapannya dalam kehidupan mereka sebagai anggota keluarga dan masyarakat (Sofiana & Wibowo, 2019).…”

Section: Angketunclassified

Pengembangan Petunjuk Praktikum Kimia Berbasis Kontekstual pada Materi Elektrolit dan Non-Elektrolit

Inayah¹

2020

JEC

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Penelitian ini dilatar belakangi oleh kebutuhan peserta didik kelas X MAN 2 Semarang dalam pemahaman materi dengan menggunakan metode praktikum berbasis kontekstual sehingga peserta didik dapat menghubungkan materi dengan kehidupan nyata peserta didik. Penelitian ini menggunakan metode penelitian dan pengembangan yang biasa dikenal dengan istilah Research and Development (R&D). Model pengembangan yang direncanakan dalam penelitian ini menggunakan model pengembangan 4-D. Model pengembangan 4-D tahap-tahapnya yaitu Define, Design, Develop, dan Disseminate. Hasil penelitian di MAN 2 Kota Semarang (1) Pada aspek kognitif tingkat kelulusan klasikal peserta didik mencapai 93 % terhadap materi sehingga dapat dikatakan efektif. (2) Pada aspek afektif diperoleh hasil sebanyak 94,36 % nilai afektif peserta didik untuk mengikuti pembelajaran dikatakan dengan tingkat pencapaian Sangat Tinggi. (3) Pada aspek psikomotorik hasil pencapaian diperoleh sebanyak 96,09 % dengan kriteria pencapaian Sangat Tinggi. (4) Pada uji kelayakan buku petunjuk praktikum melalui angket tanggapan peserta didik dengan tingkat pencapaiannya ialah 91,2 % berada pada kriteria efektif. Buku petunjuk praktikum kimia berbasis kontekstual materi elektrolit dan non-elektrolit yang dikembangkan ini terbukti efektif dan layak digunakan dalam proses pembelajaran.

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Pengaruh Suhu Kalsinasi dan Waktu Kukus Terhadap Aktivasi Limbah Praktikum Isotherm Freundlich Di Laboratorium Kimia Analitik

Abstract: This study aims to determine the effect of calcination temperature and steaming time on activation of Freundlich isotherm practicum waste (FIPW) in the Analytical Chemistry Laboratory.

Cited by 2 publications

References 5 publications

Practical Guide for Determining the Reaction Rate and Reaction Order Based on the Colorimeter® Application

Practical Guide for Determining the Reaction Rate and Reaction Order Based on the Colorimeter® Application

Pengembangan Petunjuk Praktikum Kimia Berbasis Kontekstual pada Materi Elektrolit dan Non-Elektrolit

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