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All Journal ALSYS : Jurnal Keislaman dan Ilmu Pendidikan Jurnal Pendidikan Kimia, Fisika dan Biologi
Widya Rahayu Putri
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Sintesis dan Karakterisasi Garam Rangkap Kupri Amonium Sulfat Heksahidrat (Cu(NH4)2(SO4)2.6H2O) Mia Baizura; Nadila Khairunnisa; Salsabila Hasna Putri; Widya Rahayu Putri
Jurnal Pendidikan Kimia, Fisika dan Biologi Vol. 1 No. 5 (2025): September : Jurnal Pendidikan Kimia, Fisika dan Biologi
Publisher : Asosiasi Riset Ilmu Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jupenkifb.v1i5.679

Abstract

This research focuses on the synthesis and characterization of the double salt copper(II) ammonium sulfate hexahydrate, Cu(NH4)2(SO4)2·6H2O. The study aims to obtain the compound in crystalline form and evaluate its properties through yield calculation, solubility testing, and Fourier Transform Infrared (FTIR) spectroscopy. The synthesis involved reacting copper(II) sulfate pentahydrate (CuSO4·5H2O) with ammonium sulfate ((NH4)2SO4) under controlled conditions, followed by crystallization. The process produced 10.84 grams of crystalline Cu(NH4)2(SO4)2·6H2O with an 86.23% yield, indicating efficient synthesis. Solubility tests showed that the crystals were polar, soluble in polar solvents like water and hydrochloric acid (HCl), partially soluble in ammonium hydroxide (NH4OH), and insoluble in less polar solvents like ethanol and chloroform (CHCl3). FTIR analysis confirmed the presence of functional groups such as O–H, N–H, and S–O stretching vibrations, supporting the proposed molecular structure. The findings demonstrate that Cu(NH4)2(SO4)2·6H2O can be efficiently synthesized, and its physicochemical properties align with theoretical expectations. This study contributes to the understanding of double salt synthesis and characterization, relevant for inorganic chemistry, material science, and potential applications in catalysis and coordination chemistry.
Pengaruh Penggunaan Permainan Ludo Kimia sebagai Media Pembelajaran Materi Asam dan Basa terhadap Hasil Belajar Peserta Didik Fase F SMA/MA Widya Rahayu Putri; Iswendi Iswendi
ALSYS Vol 5 No 5 (2025): SEPTEMBER
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/alsys.v5i5.6808

Abstract

This study was motivated by the availability of the Ludo Kimia educational game, which has been proven valid, practical, and effective as a learning exercise on acid-base material, yet its impact on students' cognitive learning outcomes remains unexplored. The objective of this research is to analyze the effect of using the Ludo Kimia game on the cognitive learning outcomes of Phase F students at SMA Negeri 14 Padang. The study employed a quasi-experimental method using the Pretest-Posttest Control Group Design. The population consisted of all Phase F students, with samples selected through simple random sampling, resulting in class XI F.4 as the control group and XI F.3 as the experimental group. The instrument used was a multiple-choice test comprising 20 validated items. Data were analyzed using the t-test to evaluate the research hypothesis. The results showed that the average posttest score of the experimental class was 86.56, higher than the control class average of 77.5. The t-test yielded tcount (2.466) > ttable (1.996) at a significance level of α = 0.05, indicating a statistically significant effect. The study concludes that the use of the Ludo Kimia game significantly improves students’ cognitive learning outcomes on acid-base topics.
Co-Authors iswendi iswendi Mia Baizura Nadila Khairunnisa Salsabila Hasna Putri