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All Journal Jurnal Kedokteran Universitas Palangka Raya Idarotuna : Jurnal of Administrative Science
Ma’rufah
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Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Immunology & microbiology Industrial & Manufacturing Engineering Medicine & Pharmacology Public Health Social Sciences

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Perbandingan Metode Titrasi Asidi-alkalimetri Dengan Titrasi Iodometri Dalam Analisis Formalin Pada Sampel Tahu Putih Kecamatan Gondanglegi, Kabupaten Malang Suriaman, Edi; Eryatma, Rosalinda Avia; Ma’rufah; Zulaikah , Siti; Mahdiasanti, Ika Wuri
Jurnal Kedokteran Universitas Palangka Raya Vol 12 No 1 (2024): Jurnal Kedokteran Universitas Palangka Raya
Publisher : Fakultas Kedokteran, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/jkupr.v12i1.12872

Abstract

This study aimed to compare two titration method (acid-base titration and iodimetri) in analyze formaldehyde at sample tofu in Gondang legi sub-district, Malang District. The research used a experimental method with added variation concentration formaldehyde in tofu filtrate. Tofu filtrate with formaldehyde then be titrated with acid-base and iodimetri method. Acid-base titration used Phenolphtalein (PP) indicator and Iodimetri titration used amylum indicator. The results of study the higher the concentration of formaldehyde the volume of titration. Titration used Iodimetri method not recommended because redox reaction at iodimetri is a slow and inaccurate reaction.  
Meningkatkan Hasil Belajar Siswa Melalui Model Pembelajaran Active Learning Tipe Problem Solving Abd Azis; Ma’rufah
Idarotuna : Journal of Administrative Science Vol. 6 No. 1 (2025): May
Publisher : Program Study Office Adminstrative of Akademi Komunitas Teknologi Syarifuddin Lumajang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54471/idarotuna.v6i1.136

Abstract

Analyzing how well the Active Learning model and the Problem Solving technique enhance student learning results at MTs Al-Ishlahiyyah Tumpuk, Sambisirah, Wonorejo, Pasuruan, is the goal of this study. Students in the seventh grade served as the subjects. A qualitative approach was the methodology employed. The findings demonstrated that the application of this learning model effectively enhanced learning outcomes, with the majority of students achieving scores higher than the 75-point Minimum Completion Criteria (KKM). Some students showed strong ambition, activity, and enjoyment for the learning process, even if they were still below the Minimum Competency (KKM). According to student interviews, this methodology improved their comprehension of the subject matter, developed their capacity for original thought, and made learning more interesting and applicable. As a result, the Problem-Solving-based Active Learning paradigm has been successful in raising students' comprehension and learning abilities while fostering a more engaging and joyful learning environment. This study significantly advances the creation of creative and successful teaching strategies for classroom settings.
Co-Authors Abd Azis Eryatma, Rosalinda Avia Mahdiasanti, Ika Wuri Suriaman, Edi Zulaikah , Siti