Vol. 13 No. 1 (2025): February 2025

Articles

• Optimization of Extraction Parameters for Phenolics and Flavonoids from Peony (Paeonia lactiflora) Flowers Using Ultrasound-Assisted Extraction

  Faida Jasmin, Andi Ika Julianti Handayani, Tubagus Akmal

  1-11

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14346
  Abstract View: 0 | Untitled Download: 0 PDF Download: 105

• Antioxidant of Ethanol Extract and Toxicity of Fractions from Aspergillus unguis a Marine Sponge Symbiont of Aaptos suberitoides

  Scify Bilqis Nawafi Masyerli, Mai Efdi, Muhammad Hasan Bashari, Mochamad Untung Kurnia Agung, Beginer Subhan, Efahmi Efahmi, Yosie Andriani, Syafrizayanti Syafrizayanti

  12-21

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14645
  Abstract View: 0 | Untitled Download: 0 PDF Download: 90

• Adsorption of Nitrite (NO2-) Using Natural Zeolite and Natural Zeolite Modified with Cetyl Trimethylammonium Bromide (CTAB)

  Ihsan Sofyan Hanan, Muhammad Fahmi Hakim Hakim, Teguh Pambudi

  22-38

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14643
  Abstract View: 0 | Untitled Download: 0 PDF Download: 62

• A Literature Review: Antimicrobial Phenolic Compounds in Nutmeg (Myristica fragrans Houtt)

  Jahiria Ipaenin, Lutfi Chabib, Hasnaeni Hasnaeni, Risman Tunny

  39-48

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14583
  Abstract View: 0 | Untitled Download: 0 PDF Download: 75

• Calcium Assay of Tuna Bone Waste with Atomic Absorption Spectrophotometer (AAS)

  Najmah Najmah, Andi Indra Wulan Sari Ramadhani, Devi Bunga Pagalla, Arviani Arviani, Vivi Dia Afrianti Sangkota

  49-57

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14705
  Abstract View: 0 | Untitled Download: 0 PDF Download: 83 Hasil Turnitin Download: 0

• Characterization of Activated Carbon from Mangosteen Peel (Garcinia Mangostana L.) Activated with Phosphoric Acid (H3PO4)

  Erwin Riski Indrastika, Nasrul Rofiah Hidayati, Ade Trisnawati

  58-64

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14557
  Abstract View: 0 | PDF Download: 79 Untitled Download: 0

• HydroTechPure Prototype Development: Dual Mode Filter-Based Water Purification Tool as a STEM-Based Learning Tool

  Nahadi Nahadi, Wiwi Siswaningsih, Miarti Khikmatun Nais, Triannisa Rahmawati, Atep Rian Nurhadi, Hayuni Retno Widiarti, Ari Syahidul Sidiq, Agnes Suci Evriliani, Aztiannisa Zahra, Liana Ambar Sari, Ahmad Nafran Razani, Qurrotu Aini Zahran, Muhammad Fiqri Rahman, Fajar Abdurrahman

  65-78

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14082
  Abstract View: 0 | Untitled Download: 0 PDF Download: 151

• The Effect of Problem Based Learning Model in Improving Students Argumentation Skills: Systematic Literature Review

  Happy Okmarisa, Niken Ayu Lestari, Listia Ariani

  79-86

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14220
  Abstract View: 0 | Untitled Download: 0 PDF Download: 98

• Analysis of Students Scientific Literacy in Integrated Acid-Base Learning Socioscientific Issues

  Robby Haryanto, Yuli Rahmawati, Irwan Saputra

  87-100

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14305
  Abstract View: 0 | Untitled Download: 0 PDF Download: 50

• The Impact of Problem-Based Learning (PBL) Module on Critical Thinking Skills on Electrolyte and Nonelectrolyte Solutions

  Dwivelia Aftika Sari, Mimi Herman, Steva Dara Putri, Hidayati Hidayati

  101-109

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14137
  Abstract View: 0 | Untitled Download: 0 PDF Download: 47

• The Effectiveness of the Case Method in Promoting Meaningful Learning and Enhancing Student Learning Outcomes

  Munawwarah Munawwarah, Zuhrah Adminira Ruslan

  110-118

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14567
  Abstract View: 0 | Untitled Download: 0 PDF Download: 57

• Analysis of Student Misconceptions Using the Three-tier Diagnostic Test on Atomic Structure Class X Material at SMA N 1 Lintau Buo

  Rahma Tustari, Mimi Herman, Dwivelia Aftika Sari, Elvy Rahmi Mawarnis, Hidayat Herman

  119-129

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14633
  Abstract View: 0 | Untitled Download: 0 PDF Download: 65 Untitled Download: 0

• Profile of Critical Thinking Skills and Cultural Literacy of Students in the Basic Chemistry Course

  Khaeruman Khaeruman, Ketut Suma, Siti Maryam, I Wayan Suastra, Siti Nurhidayati

  130-138

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14515
  Abstract View: 0 | Untitled Download: 0 PDF Download: 64

• Development of Assessment Tools for Understanding Submicroscopic Representations in Acid-Base Material

  Ivan Ashif Ardhana, Rahayu Nur Hidayah, Syandifa Rohadlotul ‘Aisy, Mustabsyirotul Ijtihadah

  139-150

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14328
  Abstract View: 0 | Untitled Download: 0 Instrumen Soal Pemahaman Submikroskopik Download: 0 Hasil Analisis Uji Coba Instrumen (Pilot Study) Download: 0 PDF Download: 64

• The Effect of STEM-Project-based Learning on Self-Efficacy in High School Chemistry Learning

  Alya Atifah, Rr. Lis Permana Sari

  151-161

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14211
  Abstract View: 0 | Untitled Download: 0 PDF Download: 101

• Analysis of Student Response to the Use of Biochemistry e-Module on Carbohydrate Materials in Enhanching Learning Independence

  Titin Mairisiska, Ramadani Ramadani, Nosi Qadariah

  162-173

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  DOI : https://doi.org/10.33394/hjkk.v13i1.13929
  Abstract View: 0 | Untitled Download: 0 PDF Download: 83

• Analysis of the Implementation of Formative Assessment on Students' Conceptual Understanding in Chemistry Learning

  Putri Nisrina, Rizka Indah Primawati, Nahadi Nahadi

  174-185

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14367
  Abstract View: 0 | Untitled Download: 0 PDF Download: 86

• The Influence of Learning Independence and Learning Styles on the Chemistry Achievement of 11th-Grade Students at SMAN 2 Pasarwajo

  Dahlan Dahlan, Nurlansi Nurlansi, Lastri Susilawati

  186-196

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14754
  Abstract View: 0 | Untitled Download: 0 PDF Download: 50

• Application of Silica Adsorbent Rice Husk Ash-Activated Carbon in Refining Waste Cooking Oil

  Donna Sumarni Gala, Rahmanpiu Rahmanpiu, Wa Ode Mulyana

  197-208

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14802
  Abstract View: 0 | Untitled Download: 0 PDF Download: 62

• Development of Interactive Learning Media Based on a 2-Dimensional Virtual Laboratory on Electrochemical Materials

  Neneng Andriani Joko, La Rudi, Muhammad Arsyad

  209-221

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  DOI : https://doi.org/10.33394/hjkk.v13i1.14853
  Abstract View: 0 | Untitled Download: 0 PDF Download: 96 Untitled Download: 0

• Description of The Implementation of Character Values In The Project For Strengthening The Pancasila Student Profile (P5) Sustainable Lifestyle Theme

  Dian Eka Safitri, Hairida Hairida, Eni Mayasari

  222-235

  DOI : https://doi.org/10.33394/hjkk.v13i1.14699
  Abstract View: 0 |