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Evaluasi Akurasi dan Presisi Titrasi Asam-Basa dalam Menentukan Konsentrasi Natrium Hidroksida Susiati, Asih Luklu; Jumrohwati; Alif, Nur Amalia
Medika Tadulako: Jurnal Ilmiah Kedokteran Fakultas Kedokteran Vol. 11 No. 1 (2026): Maret
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/d42grb36

Abstract

Penelitian ini bertujuan untuk mengevaluasi tingkat ketepatan dan konsistensi metode volumetri dalam penentuan kadar larutan basa pada skala laboratorium dasar. Penelitian dilakukan secara kuantitatif eksperimental melalui pengukuran berulang sebanyak sembilan kali menggunakan prosedur netralisasi antara larutan natrium hidroksida dan asam klorida dengan indikator fenolftalein. Data dianalisis menggunakan perhitungan nilai rata-rata, standar deviasi, dan persentase variasi relatif untuk menilai konsistensi hasil, serta dibandingkan dengan nilai teoritis untuk menentukan tingkat ketepatan pengukuran. Hasil menunjukkan bahwa volume titran berada pada rentang yang relatif sempit dengan nilai rata-rata 5,26 mL dan menghasilkan konsentrasi 0,0526 M. Perbedaan terhadap nilai teoritis masih berada dalam batas yang dapat diterima untuk praktikum dasar. Temuan ini menunjukkan bahwa metode yang digunakan memiliki tingkat konsistensi dan ketepatan yang cukup baik serta layak diterapkan dalam kegiatan laboratorium pendidikan dengan tetap memperhatikan faktor teknis operasional.
Bridging Neurobiology and Behavior: A Mixed-Methods Study of Scientific Literacy in Psychiatric Contexts Among Biology Education Students' Wahyuni, Wahyuni; Anto, Ambo; Faisal, Faisal; Susiati, Asih Luklu
Biology Teaching and Learning Vol 8, No 2 (2025): December
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/btl.v8i2.83825

Abstract

Abstract. This study aims to analyze biology education students’ scientific literacy in psychiatric contexts, particularly in interpreting neurobiological mechanisms and behavior. A mixed-methods approach with a convergent parallel design was employed, involving 40 students. Data were collected through scenario-based tests (stress, anxiety, depression) and in-depth interviews. Quantitative data were analyzed using descriptive statistics and One-Way ANOVA, while qualitative data were examined through thematic analysis. The results indicate that scientific literacy is at a moderate level, with higher performance in explaining biological phenomena than in interpreting behavior and making evidence-based decisions. Significant differences were found across cases (p < 0.01), with the lowest performance in depression cases. Qualitative findings reveal the dominance of semi-scientific reasoning due to limited conceptual integration. This study highlights that scientific literacy in psychiatric contexts is integrative, requiring the linkage between neurobiological mechanisms and behavioral interpretation, and underscores the importance of contextual and authentic biology learning.Keywords: Scientific literacy, maternal context, physiological changes, pregnancy complications, education, contextual learning