Article Per Year (5 Year)
p-Index From 2020 - 2025
8.043
P-Index
This Author published in this journals
All Journal Jurnal Pendidikan Kimia Indonesia ELT Worldwide: Journal of English Language Teaching Jurnal Pendidikan dan Pembelajaran Kimia (JPPK) Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Akademika Kimia Indonesian Journal of Chemistry Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Politik dan Pemerintahan Daerah Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Jurnal Akuntansi & Perpajakan Jayakarta JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Jurnal Pengabdian kepada Masyarakat Nusantara Mattawang: Jurnal Pengabdian Masyarakat Panrannuangku Jurnal Pengabdian Masyarakat NUSRA: Jurnal Penelitian dan Ilmu Pendidikan Jurnal Akademika Kimia JURNAL PENELITIAN BIDANG PENDIDIKAN Edu Research : Jurnal Penelitian Pendidikan Innovative: Journal Of Social Science Research RESPON Jurnal Ilmiah Mahasiswa Ilmu Komunikasi AGROLAND: The Agricultural Sciences Journal Jurnal Akademika Kimia PIAF : Paser Institute Journal Of Accounting And Finance Kajian Ilmiah Mahasiswa Administrasi Publik (KIMAP)
Sitti Rahmawati
Program Studi S-1 Pendidikan Kimia, FKIP, Universitas Tadulako
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

Published : 66 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 6 Documents
Search
Journal : Jurnal Akademika Kimia

 1 
The Analysis of the Honesty and Responsibility Characters of Chemistry Education Study Program Students on Examinations Suherman Suherman; Sitti Rahmawati; Kasmudin Mustapa; Detris Poba; Nur Azizah
Jurnal Akademika Kimia Vol. 10 No. 3 (2021)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2021.v10.i3.pp167-173

Abstract

Honesty and responsibility should be a principle held by students. But, there are still problems of dishonesty and irresponsibility of students during exams. This study aimed to analyze the honesty and responsibility character of chemistry students during exams. The research samples were 39 students. Data were collected by observation and interviews technique, by using observation and questionnaires sheets. Data were analyzed by using descriptive statistics. The results showed that the honesty and responsibility of chemistry students were in the sufficient category where the percentage of honesty and responsibility of students based on the observation sheets was 43.6% and 49%, respectively. While the questionnaire responsibility students were 46.2% and 43.6%, respectively.
Examining Student Conception of Reaction Rate Through Three-Tier Multi-Representation Assessments Magfirah, Magfirah; Alimuddin, Chatifah; Santoso, Tri; Afadil, Afadil; S. Ahmar, Dewi; Rahmawati, Sitti
Jurnal Akademika Kimia Vol. 12 No. 3 (2023)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2023.v12.i3.pp199-204

Abstract

This study aims to analyze students' conceptions of reaction rate topics using the three-tier multi-representation test. Based on the characteristics of reaction rates concepts that involve the understanding of multiple representations, it is essential to analyze student conceptions that include multiple representations, namely macroscopic, microscopic, and symbolic. A three-tier diagnostic test can be done to assess students' conceptions, with the questions given in the first tier presented with macroscopic, microscopic, or symbolic representations according to the characteristics of the concept in question. This research uses a descriptive quantitative method conducted at Madrasah Aliyah Negeri 2 in Palu City, Central Sulawesi. The subjects of this study were 50 students consisting of 28 female students and 22 male students. It was determined by random sampling technique. Instrumentation used a three-tier representation test with 15 multiple-choice questions. Validation of instruments showed that the questions were feasible and fell into the high category. The findings reveal that only 29 % of students know the concept, categorized as low. Additionally, 40 % of students were identified as having misconceptions, placing them within the medium category, while 31 % of students exhibited not knowing the concept, also classified in the medium category. Symbolic representation emerged as the most challenging representation for students, with 35 % failing to comprehend it, categorized as medium. Furthermore, among students with misconceptions, symbolic and macroscopic representations were the most problematic, collectively accounting for 34 %, also classified as medium. These results underscore the need for targeted instructional strategies to address specific areas of difficulty and improve overall conceptual understanding.
Effectiveness of Purification Used Cooking Oil Using Adsorbents: Activated Charcoal Seeds Salak (Salacca zalacca) Sufia, Sufia; Santoso, Tri; Aminah, Sitti; Rahmawati, Sitti
Jurnal Akademika Kimia Vol. 12 No. 4 (2023)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2023.v12.i4.pp247-253

Abstract

Salak seeds have a reasonably high cellulose content. This suggests that salak seeds can be used as a raw material for producing activated charcoal to refine used cooking oil. This study aims to determine the effectiveness of refining used cooking oil using active charcoal adsorbents derived from Salacca zalacca seeds. The methods used to determine free fatty acid levels and peroxide values are the acid-base and iodometric titration methods. This study will observe several variables that affect the adsorption process, namely the mass of activated charcoal and the contact time of used cooking oil. The results showed a decrease in free fatty acids and peroxide number, and the colour of the oil became brighter with increasing adsorbent and contact time. The best results were obtained at a mass of 15 grams and an adsorption time of 120 minutes. Based on the quality requirements for cooking oil as specified in SNI 3741-1995.
Determination of Hydrolyzed Tannin Content in Cocoa Fruit Peel Waste of MCC 01 Clone, Using UV-Vis Spectrophotometry Mangela, Yessika D.; Hamzah, Baharuddin; Rahmawati, Sitti; Pulukadang, Sri H. V.
Jurnal Akademika Kimia Vol. 14 No. 1 (2025)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2025.v14.i1.pp58-63

Abstract

Cocoa Fruit Peel Waste MCC 01 Clone (Theobroma cacao L.) is a traditional medicinal plant with tannins that can be utilized as an anti-bacterial because it contains phenol groups and has antiseptic properties. This study aims to determine the type of tannin compound and the tannin content in cocoa fruit peel waste extract. The maceration method was used to extract the extract using 70% ethanol as a solvent. Qualitative test of tannin type was conducted using C2H4O2 10%, C2H3O2 10%, HCl, FeCl3, and KBr, while quantitative test was conducted using UV-Vis Spectrophotometry at a wavelength of 765 nm. The qualitative test results to determine the type of tannins obtained from cocoa fruit peel waste indicate that it contains hydrolyzed tannins. In the quantitative test, the average tannin content was 4.73 mg/g extract.
Learning Difficulties and Students' Ability Level During Pandemic Covid-19 on the Subject of Thermochemistry Agustina, Rizza R. T.; Afadil, Afadil; Rahmawati, Sitti; Tiwow, Vanny M. A.
Jurnal Akademika Kimia Vol. 12 No. 1 (2023)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2023.v12.i1.pp26-31

Abstract

This study aims to identify learning difficulties learning experienced by students on the subject thermochemistry in class XI IPA SMA Negeri 8 Palu during the Covid-19 pandemic for the 2021 / 2022 school year. The instruments used in this study are thermochemistry tests, questionnaires, and interviews. The result showed students’ difficulties in the subject thermochemistry in class XI IPA was 60 %, the highest difficulty of students is found in the thermochemistry test of calculating the heat of the type of compound, calculating enthalpy changes, and formulating steps and hypotheses of an experiment. The difficulty is indicated by the low level of student comprehension of 54 %, medium 43 %, and high 3 % with an average of 30%. Furthermore, the difficulty of students in participating in chemistry learning during the Covid-19 pandemic is technical difficulties with a percentage of 65.92 %, difficulties in implementing learning with a percentage 0f 65.44 %, and external difficulties (environment and parents) with a percentage of 52.92 %. based on these results, the learning difficulties experienced by students during chemistry learning thermochemistry subjects during the Covid-19 pandemic include students often being constrained by signals and quotas to access materials on the internet and do not have student handbooks to study at home, difficulty understanding chemistry concepts because teacher explanations are elusive, students are not active in participating in learning because chemistry learning during the pandemic is not interesting, can’t afford chemistry books and quotas also parents don’t provide motivation and students are often lazy to do assignments because no one helps with doing. The result of this study indicates that the level of students' difficulties learning about thermochemistry is a quite high category with a low level of student ability and students agree that it is difficult to study chemistry during the pandemic Covid-19.
Epoxidation of Eugenol from Clove Oil (Syzygium aromaticum) Using H₂O₂ Oxidizer and H₃PO₄ Catalyst Gheje, Walburga E.; Abram, Paulus H.; Tiwow, Maria V.; Rahmawati, Sitti
Jurnal Akademika Kimia Vol. 14 No. 2 (2025)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Clove oil (Syzygium aromaticum) contains 80–90% eugenol. Eugenol is a pale yellow liquid with several active functional groups, such as hydroxyl, aromatic rings, and allyl groups, which allow it to be modified to produce various eugenol derivative compounds. This study aims to characterize eugenol epoxy resin synthesized from clove oil eugenol using hydrogen peroxide (H₂O₂) and phosphoric acid (H₃PO₄) as a catalyst. The resulting eugenol epoxide was in the form of a yellowish-white gel with a distinctive clove aroma. It was soluble in benzene and chloroform but insoluble in ethanol. FTIR analysis showed that the epoxy compound contained an ether group (C-O-C) at absorption peaks of 1266.07 cm⁻¹ to 1018.66 cm⁻¹, a hydroxyl group (─OH) at 3347.08 cm⁻¹, a methyl group (-CH₃) at 1470 cm⁻¹ to 1350 cm⁻¹, an alkene group (C=C) at 1637.39 cm⁻¹, and a vinyl group at 910.2 cm⁻¹.
Co-Authors Abram, Paulus H. Adjis, Moh. Asril Afadil Agustin Tiwow Agustina, Rizza R. T. Ahdan, Ahdan Ahdiat, Mohammad Ahmar, Ansari Saleh Akidah, Ihramsari Alifa, Nur Alimuddin, Chatifah Anam, Chaerul Anang Wahid M.Diah Andi Pertiwi Damayanti Andi Saifah Anggriani, Windi Arwansyah Asmita, Asmita Awaru, Tenri Ayu, Ari Azzajjad, Muhammad Fath Baharuddin Hamzah Basoa, indah Ekawati Bunbun Bundjali Cynthia Linaya Radiman Daini, Dinda Ulan Dandi Daud Karel Walanda Detris Poba Detris Poba Dewi Satria Ahmar Dia Afrianti Sangkota, Vivi Eka Andani , Siti Nur Fatmawati, Fatmawati Fuad, Fawwas Roihan Gheje, Walburga E. Hadawiah, Hadawiah Haerani Maksum Halida, Nur Hardani, Muhammad Fakhrul Hasfat, Hamsar Hasriyanty Hasriyanty Hengki Abram, Paulus Ifriana, Ifriana Ijirana Indah Sari, Nurul Irwan Said Jamaludin M Sakung Johanis Panggeso Jumadil, Jumadil Kasmudin Mustapa Kumala Putri P, Andi Sri Linawati Linawati M. Diah, Anang Wahid Magfirah Magfirah, Magfirah Majid, Abd Male, Kasmir Sy. Manalu, Yessi Febianti Mangela, Yessika D. Mery Napitupulu Metoli, Erwin Priscal Muhamad Abdulkadir Martoprawiro Muhammad Arham Muhammad Zikra Nadi, Luh Novita Sari Nur Anisa Nur Azizah Nur Hayati Nurbaya Nurbaya, Nurbaya Nurfadila, Safna Parmin - Pathuddin Patmasari, Andi Paulus Hengky Abram Pulukadang, Sri H. V. Purnama Ningsih Pusvita , Arwini Rabasia Rabiah, Sitti Ririen Hardani Rofifah Marzuki, Nur Rosmini Rosmini S, Afadil S. Ahmar, Dewi Sanggona, Nadya Marsyella Sangkota, Vivi Dia A. Sangkota, Vivi Diah Sari, Nurita Sari, Nurul Indah Selvy Mozin Siang Tandi Gonggo Siti Fatimah Siti Nuryanti Sitti Aminah Sri Anjar Lasmini Sri Hastuti Virgianti Pulukadang Sri Muliani, Sri Sri Mulyani Sabang Sri Sarjuni Sriyulaningsi, Sriyulaningsi Sufia, Sufia Suherman Suherman Suherman Suherman Suherman, Suherman Suhestin Mooduto Sukmawati Putri , Iin Tahril Tandi, Asri Taslima Thaha, KHaeruddin Tiwow, Maria V. Tonio, Sarinah Emilia Tri Santoso Tri Santoso U.B., Sitti Nadira Umar Mansyur Ummiani Hatta Usman Made Wahab, Zamil Wahda Nur Alisa WINARSIH Winda Winda Yuana Stesya Palunsu Yuli Nurmayanti Yuyun Elfrina Manjarara Zelfia