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JKPK (Jurnal Kimia dan Pendidikan Kimia)
Published by Universitas Sebelas Maret
ISSN : 25034146     EISSN : 25034154     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry
The JKPK (Jurnal Kimia dan Pendidikan Kimia) is a national journal, published three times a year in April, August, and December, containing research articles on Chemistry and Chemistry education.
Arjuna Subject : -
Articles 255 Documents
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Table of Contents volume 5 Number 3 JKPK (Jurnal Kimia dan Pendidikan kimia)
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 5, No 3 (2020): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v5i3.48250

Abstract

Module Development with Problem Based Learning (PBL) Model Based on Environmental Wetland to Increase Students’ Learning Outcomes Mohamad Nor Aufa; Rilia Iriani; Parham Saadi; Muhammad Hasbie; Muhammad Awaluddin Fitri; Amalia Yunita
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 5, No 2 (2020): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v5i2.40451

Abstract

Research has been carried out on the development of modules with the Problem Based Learning (PBL) model based on wetland environments on the topic of acid-base solutions. This study aims to determine: the validity, practicality and effectiveness of module development. This study used a research & development design of a 4-D development model that was modified into 3-D, the data collection techniques used a test of student learning outcomes and a questionnaire. The research was conducted at SMAN 3 Banjarmasin with a sample of 10 students of class of XI PMIA 3 for small-scale trials, 24 students of XI PMIA 3 for limited-scale trials, and class of XI PMIA 1 and XI PMIA 2 with total 74 students for testing in a wide scale. Validity can be seen based on the results of the validation, the practicality of the students’ responses, and the effectiveness of the students' learning outcomes. The results showed that the module was considered valid with an average score of 146.4 and a percentage of 91.58% (very valid), practical with a percentage of 82.90% (good), effective with an average N-gain score of 0.84 (high), the average score of N-gain is 0.87 (high) for class of XI PMIA 1 and 0.86 (high) for class of XI PMIA 2. The results of this study indicate that the module with the Problem Based Learning (PBL) model based on the wetland environment on the topic of acid-base solutions is declared valid, practical and effective for use as a learning resource for students. 
Digital Literacy Analysis of Chemistry Education Students in Using the ChemDraw Application Ella Izzatin Nada; Wiwik Kartika Sari
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 5, No 3 (2020): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v5i3.46441

Abstract

Students digital competence abilities can be measured using the individual competence framework. There are five indicators used: information, communication, content creation, safety, and problem-solving. This study analyses students digital literacy profile with high, medium, and low ChemDraw skills. This research is a qualitative descriptive study. The trial was conducted on 25 Chemistry Education Students at UIN Walisongo Semarang with high, medium and low ChemDraw skills. Data were obtained using ChemDraw test instruments, observation and questionnaires. The data obtained were analysed based on digital literacy indicators to obtain student digital literacy profiles. The results showed that the digital literacy level of students with high ChemDraw skills had a moderate level of digital competence. Students with medium ChemDraw skills have a moderate level of digital competence. Meanwhile, students with low ChemDraw skills have a low level of digital competence
Rash Model Approach for Analysis of Misconception on Chemistry Learning with Distractor Analysis Sri Mulyani; Nur Haniza; Dimas Gilang Ramadhani; Lina Mahardiani
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 6, No 1 (2021): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v6i1.50517

Abstract

Multiple-choice questions can be used to identify misconceptions through distractor analysis. Distractor analysis for identifying misconceptions using Rasch modelling to find out how students choose options and whether they have any misconceptions. The test instrument uses questions from the teacher association in Indonesia to assess students’ ability to master chemical contexts. The number of question items used is 35 and has been validated and tested for reliability to be feasible to use. Questions were given to 462 first-year high school students. The fit item analysis results show that there are several questions related to clothing that indicate misconceptions. This is supported by the distractor analysis value, which found that misconceptions indicate questions related to electrolysis, the incidence of colligative properties in daily life and the factors that affect corrosion. The distractor’s value and the option probability curve are used to see how students know the ideas offered. The analysis results found that the material in the form of concepts and their application showed a large misconception, in which students would find it difficult to combine concepts and their applications.
Reconstruction of Practice Module on the Adsorbent Topic Contained the Nature of Science (NOS) Dinnah Raihanah; Nanda Saridewi; Dila Fairusi
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 5, No 2 (2020): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v5i2.30696

Abstract

The training module is a learning material with interesting illustrations, communicative language, and can be adapted to students' knowledge. Through this module, students can apply their knowledge to life. This study aims to reconstruct the practice module on the topic of adsorbents contained in NOS. The research design of the Educational Reconstruction Model (MER) as the primary reference in making the adsorbent practice module. The participant used was one of the secondary schools in the city of South Tangerang. The results of the calculation of the Content Validity Ratio (CVR) and Content Validity Index (CVI) show that the chemical concepts presented are valid and do not need to be improved. Test results show that from 30 student respondents, the overall percentage data was 89.8%, which means that this module is excellent and suitable as a source of learning in schools. The results of this study can be used as an example of innovating teaching materials. 
Synthesis and Characterization of Fe3O4 Composites Embeded on Coconut Shell Activated Carbon Luqman Hakim; Endaruji Sedyadi
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 5, No 3 (2020): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v5i3.46543

Abstract

Synthesis and characterization of Fe3O4-coconut shell activated carbon composites has been carried out to create a magnetic adsorbents. Composites were synthesized using the coprecipitation reflux method by mixing a solution of Fe3+/Fe2+ iron salt (mol ratio 2:1) and suspension of activated carbon in water followed by the addition of NaOH solution. The structure, functional groups, morphology and surface area of the composites were characterized using FTIR, XRD, SEM and GSA. The magnetic properties of composites are tested by response to magnetic fields. The characterization results showed that the embedment of Fe3O4 on coconut shell activated carbon was successfully carried out through the interaction of hydroxyl groups at wave numbers 601.79 and 416.62 cm-1. Diffraction peaks at 2θ 30.12° [220], 35.58° [311], 43.14° [400], 53.57° [422], 57.18° [511] and 62.83° [440] indicate the existence magnetite sized of 11.72 nm. Activated carbon has an average pore size of micropores with an average pore of 1.46 nm. Magnetite embedment reduced the surface area of activated carbon from 91.16 m2/g to 12.04 m2/g. The response of sample to the magnetic field indicates that composite has magnetic properties.
Phytochemical Screening of Honey Pineapple Peel Extract and Its Application as an Antibacterial Additive in Dish Soap Formulation Elfi Susanti VH; Sri Mulyani; Sri Retno Dwi Ariani; Suryadi Budi Utomo; Bayu Antrakusuma
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 6, No 1 (2021): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v6i1.45444

Abstract

This research aims to scientifically develop bioactive compounds from honey pineapple peel and develop a dish soap formulation with extract additives of honey pineapple peel that can be antibacterial. The research was conducted in stages, namely process of extracting honey pineapple peel was carried out by the maceration method using 96% ethanol as a solvent, phytochemical screening of the ethanol extract of honey pineapple peel was done to determine the class of compounds contained in the extract, and application of honey pineapple peel extract in dish soap formulation was to obtain a dish soap formulation with optimal antibacterial activity. Testing the ability of dish soap products to inhibit S. aureus bacteria was performed by the method of filter paper disc diffusion. The results revealed that the ethanol extract of honey pineapple peel contained alkaloids, flavonoids, tannins, and saponins. The ethanol extract of honey pineapple peel has been applied in a dish soap formulation and tested for the antibacterial activity of S. aureus. Antibacterial test results showed that the dish soap formulation with the addition of 5% pineapple peel extract provided strong antibacterial activity, indicated by a precise zone formation of 12.60 mm
The Development of Dusting Method for Dragon Fruit Peel as Fingerprint Visualization Sri Adelila Sari; Ade Novita Sari Lubis
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 6, No 1 (2021): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v6i1.46315

Abstract

Various fingerprint powder preparations used for fingerprints have a color or contrast and a sticky material for good adhesion. However, some chemical substrates used for fingerprint powders are toxic and have the potential to harm health. This research is essential to overcome this problem using a new natural powder , namely dragon fruit peel powder, as a latent fingerprint development that was simple, non-toxic, and cheaper than commercial used fingerprint powder. Fingerprint development was carried out on non-porous surfaces (aluminium foil, CD, glass preparations) and porous surfaces (HVS paper, spectra paper, paperboard). This study used 90 fingerprint samples based on ethnicity (Batak, Javanese, Malay), blood type, and gender. The development of fingerprints using dragon fruit peel powder resulted in clear visualization on the surface of aluminium foil and glass preparations with sizes of 100 and 200 mesh. Meanwhile, fingerprints on the paper surface resulted in poor visualization because the protrusions of the fingerprints were not visible. The most dominant fingerprint patterns based on ethnicity, blood group, and gender were the loop pattern, then the whorl, and the smallest arch, respectively. 
The Development of Scaffolding in Inquiry-Based Learning to Improve Students' Science Process Skills in The Concept of Acid and Base Solution Syafira Tiaradipa; Intan Lestari; M. Haris Effendi; M. Rusdi
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 5, No 2 (2020): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v5i2.42420

Abstract

The technique of providing learning support in a structured manner to encourage students to learn independently is called scaffolding. This consists of four types questioning, prompting, cueing, and explaining. This study aims to describe the procedure for developing scaffolding in inquiry-based learning that is beneficial to improve students' science process skills in the concept of acid and base solution. The heuristic method in the type of F2-O3-S1+S5+S6-A3 was used in this study to develop the design of the scaffolding. The data were collected using an interview and analyzed using a Delphi technique. Based on the expert validation, it was seen that the scaffolding technique designed was suitable for use. The results of the student trial also showed that the scaffolding technique was effective to be used to improve students' science process skills. It can be concluded that the scaffolding technique on inquiry-based learning was able to improve students' science process skills in the concept of acid and base solution.
Preparation of Silver-Chitosan Nanocomposites Colloidal and Film as Antibacteri Material Endang Susilowati; Mohammad Masykuri; Maria Ulfa; Dyah Puspitasari
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 5, No 3 (2020): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v5i3.46711

Abstract

Colloidal nanocomposites silver-chitosan have been made. Silver nanoparticles were produced by chemical reduction methods assisted microwave irradiation using chitosan from crab shells as a reducing agent and stabilizer, AgNO3 as a precursor and NaOH as an accelerator. This study investigated AgNO3 concentration toward localized surface plasmon resonance (LSPR) phenomenon of nanocomposites colloidal. The size and shape of the silver nanoparticles were confirmed by TEM. Furthermore, the stability of the storage was observed for twelve weeks. Colloidal and film nanocomposites silver- chitosan have been made by casting method by drying at room temperature. After that, the film characterization was carried out, including swelling with gravimetry methods and surface morphology using scanning electron microscopy (SEM). Diffusion methods tested colloid antibacterial activity and silver-chitosan nanocomposite film’s against E. Coli and S. Aureus. The results showed that the formation of silver nanoparticles was identified by the LSPR absorption band's appearance at 413-419 nm. The increasing of AgNO3 concentration increased the intensity of the LSPR absorption band. Silver nanoparticles with sizes of about 3-9 nm are spherical. The silver nanoparticles were stable at 12 weeks of storage. The higher AgNO3 concentration tends to increase the swelling of the film. The surface of the silver-chitosan nanocomposite film’s was rougher than that of the chitosan film. The higher the silver nanoparticle concentration, the higher the colloid and film antibacterial activity against E. Coli and S. Aureus.

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