Electronic Theses and Dissertation

Penelitian ini bertujuan untuk mengembangkan media pembelajaran program simulasi ekstraksi pelarut dan spektrofotometri UV-Vis pada logam lantanida menggunakan ekstraktan 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone berbasis Microsoft Excel, serta menguji kelayakan dan tanggapan mahasiswa terhadap media yang dikembangkan. Jenis penelitian yang digunakan adalah penelitian dan pengembangan (R&D), dengan tujuh langkah yaitu; (1) potensi dan masalah, (2) pengumpulan data, (3) desain produk, (4) validasi desain, (5) revisi desain, (6) uji coba produk, dan (7) revisi produk. Instrumen penilaian terdiri dari angket kelayakan media, angket tanggapan mahasiswa dan angket system usability scale (SUS). Penelitian dilakukan kepada 25 orang mahasiswa Jurusan Pendidikan Kimia Fakultas Keguruan dan Ilmu Pendidikan Universitas Syiah Kuala. Media yang diuji coba kepada mahasiswa telah divalidasi oleh validator dengan persen kelayakan sebesar 85,00% dan kategori sangat layak. Respons mahasiswa terhadap media ini sangat baik dengan rata-rata 88,35%, dan skor SUS yang didapat sebesar 85,30 dengan kategori dapat diterima, artinya program simulasi berbasis Microsoft Excel ini dapat digunakan untuk mensimulasi praktikum mengenai ekstraksi pelarut dan spektrofotometri UV-Vis pada logam lantanida menggunakan ekstraktan 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone.

This study aims to develop learning media for solvent extraction simulation programs and UV-Vis spectrophotometry on lanthanide metals using 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone based Microsoft Excel, as well as testing the feasibility and student responses to the developed media. The type of research used is research and development (R&D), with seven steps, namely; (1) potential and problems, (2) data collection, (3) product design, (4) design validation, (5) design revision, (6) product trial, and (7) product revision. The assessment instrument consisted of a media feasibility questionnaire, a student response questionnaire and a system usability scale (SUS) questionnaire. The study was conducted on 25 students of the Department of Chemistry Education, Faculty of Teacher Training and Education, Syiah Kuala University. The media that was tested on students has been validated by the validator with a feasibility percentage of 85.00% and the category is very feasible. Student responses to this media were very good with an average of 88.35%, and the SUS score obtained was 85.30 with an acceptable category, meaning that this Microsoft Excel-based simulation program can be used to simulate lab work on solvent extraction and UV-Vis spectrophotometry. on lanthanide metals using 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone extractant.