Journal of Chemical Learning Innovation

Game On for Chemistry: How Kahoot Transforms Learning Outcomes and Student Interest

2025-06-21T23:39:25+07:00

Purpose of the study: This study aims to determine the effect of Kahoot game media on students' interest and learning outcomes in chemistry lessons.

Methodology: The method used is an experimental method with a quantitative approach to determine the level of interest and learning outcomes of students and to compare the level of interest and learning outcomes of students in the control class and the experimental class.

Main Findings: The results of the t-test show a significance value of 0.000, then Sig. ˂ 0.05 so that there is an influence between the Kahoot game media and students' interest in learning. These results are supported by observation data with a significance value of 0.015, then Sig. ˂ 0.05. So it can be concluded that there is an influence between the Kahoot game media and students' interest in learning. The results of the Mann-Whitney test show a significance value of 0.749, then Sig. ˃ 0.05 so that it can be concluded that there is no significant influence between the use of Kahoot game media and students' learning outcomes.

Novelty/Originality of this study: The novelty of this study lies in the use of Kahoot game media as an interactive approach to improve students' interest and learning outcomes in abstract and complex Chemistry lessons. This study is also relevant in the context of post-pandemic digital learning that demands technology-based innovation.

Safety First? Exploring Occupational Health and Safety Knowledge Levels of Chemistry Education Students in Laboratory Settings

2025-06-21T23:49:35+07:00

Purpose of the study: The main objective of this study is to identify students' knowledge of Occupational Safety and Security.

Methodology: One hundred and eighty three (183) students of the Chemistry Education study program, Faculty of Tarbiyah and Teacher Training, Syarif Hidayatullah State Islamic University, Jakarta, participated in answering the test on Occupational Safety and Security. This test was developed based on three Occupational Safety and Security indicators, namely storing, general work procedures (handling), and disposal of hazardous chemicals.

Main Findings: Based on data analysis, it was found that on average students have insufficient knowledge about the three Occupational Safety and Security indicators (38%). In detail, the indicator for storing is 33%, general work procedures is 34%, and the last is for disposing of hazardous chemicals is 47%. The results obtained have not been able to show students' general knowledge about Occupational Safety and Security, but can be an early warning to realize the importance of Occupational Safety and Security knowledge for students when experimenting in a chemistry laboratory.

Novelty/Originality of this study: This study examines the level of knowledge of Chemistry Education students regarding the principles of (Occupational Safety and Security) in the laboratory, which is an innovative step in increasing awareness and implementation of safety protocols in practical learning.

Synthesis of SnO₂ Nanoparticles from Metals by Electrochemical Approach: An Innovative Solution for Functional Materials

2025-06-21T23:58:35+07:00

Purpose of the study: The aim of this study was to produce SnO2 nanoparticles by electrochemical method using tin metal and hydrochloric acid as electrolyte solution.

Methodology: Synthesis of SnO₂ nanoparticles was carried out using an electrochemical method with tin electrodes and HCl solution. Variations in potential (10–100 V) and HCl concentration (0.005–0.06 M) were observed for optimization. Characterization using UV-Vis, FTIR, XRD, and Zeta Sizer showed that this method was effective in producing SnO₂ nanoparticles with crystal structure, composition, and size distribution that could be optimized.

Main Findings: This study successfully synthesized SnO₂ nanoparticles from tin metal using an electrochemical method with HCl solution. The optimum potential for electrolysis was 60 V, with a HCl concentration of 0.06 M producing the largest nanoparticles (83.11 nm) at a wavelength of 207 nm and an absorbance of 3.068. XRD characterization showed a diffraction pattern according to the SnO₂ standard, while FTIR confirmed the Sn–O vibration at 580 cm⁻¹.

Novelty/Originality of this study: The characterization results show a correlation between HCl concentration with nanoparticle size and absorbance wavelength, which provides new insights into controlling the optical properties and structure of SnO₂ nanoparticles.

From Risk to Safety: Applying Job Safety Analysis in Organic Chemistry Practicals for Future Chemistry Educators

2025-06-22T00:09:42+07:00

Purpose of the study: This study aims to determine the use of Job Safety Analysis in analyzing potential hazards in Organic Chemistry practicums as an effort to implement occupational safety and security for chemistry education students.

Methodology: The method used is descriptive qualitative. The sample of this study was 41 students of the Chemistry Education Study Program. The instruments used were the Job Safety Analysis observation sheet and semi-structured interviews. The stages in analyzing potential hazards using the Job Safety Analysis method are (1) choosing a job, (2) determining the work steps, (3) identifying and analyzing potential hazards in each step of the work and (4) making efforts to control potential hazards.

Main Findings: The results of the study showed 16 potential hazards identified using the Job Safety Analysis method. The results of the analysis of the risk level value (Risk Level) of potential hazards in all work steps divided into four stages of the practicum showed that 19% were (Extreme Risk-Very High Risk), 27% were (High Risk-High Risk), 19% were (Moderate Risk-Moderate Risk) and 35% were (Low Risk-Low Risk).

Novelty/Originality of this study: This study provides an innovative contribution to the development of occupational safety culture in educational environments by integrating JSA as a preventive measure based on practical risk analysis.

Which Is More Reliable? ICP-OES vs AAS for Chromium and Lead Analysis in Heavy Metal Monitoring

2025-06-22T00:18:05+07:00

Purpose of the study: This study aims to compare the accuracy and reliability of Inductively Coupled Plasma Optical Emission Spectroscopy and Atomic Absorption Spectrometry in analyzing heavy metal contents specifically lead (Pb) and chromium (Cr) in textile wastewater.

Methodology: The study employed a descriptive experimental method using water samples collected from a river suspected of contamination by textile waste. Tools used include AAS (APHA.322 B-2005), ICP OES (IK/LEL-ITS/ICP), and various laboratory glassware. Sample preparation followed SNI 6989.57:2008, and analytical validation included precision, accuracy, linearity, LOD, and LOQ testing.

Main Findings: Both methods showed acceptable validation values, with linear regression coefficients (R²) above 0.995. ICP OES and AAS demonstrated good precision (%RSD ≤ 2%) and recovery rates between 93%–105%. However, significant differences were found between the two instruments (p = 0.012). Pb and Cr concentrations at discharge points exceeded regulatory limits.

Novelty/Originality of this study: This study presents a comparative evaluation of ICP OES and AAS in the context of environmental monitoring, providing essential insights into their suitability for detecting heavy metals in complex wastewater matrices.

Augmented Reality-Based Interactive Learning Media: Enhancing Understanding of Chemical Bonding Concepts

2025-07-11T19:41:21+07:00

Purpose of the study: This study aims to produce interactive learning media based on augmented reality technology on chemical bonding material and to determine students' responses to the media.

Methodology: This research is a development research with Warsita development model, which includes design stage, production stage, and evaluation stage. The data obtained were analyzed descriptively.

Main Findings: The results of the limited trial received positive responses from students with the percentage details obtained being 85.75% for the usability aspect, 81.80% for the illustration usage aspect, 74.57% for the future impact aspect, 79.64% for the material usefulness aspect, and 77.20% for the grammar aspect.

Novelty/Originality of this study: Can be used as an alternative interactive learning media in learning activities, especially in chemical bonding materials. Can be used as input and reference in developing interactive learning media on other materials.

Advancing Metal-Air Battery Efficiency: MnO₂ Electrocatalyst Synthesized via Electrochemical Method

2025-07-11T19:58:38+07:00

Purpose of the study: This study investigates the effect of electrode quantity and voltage on MnO₂ nanoparticle yield and characteristics under acidic and basic conditions, while also evaluating MnO₂'s potential as an electrocatalyst in metal-air batteries.

Methodology: Synthesis of MnO₂ was carried out by electrolysis of KMnO₄ solution with stirring using a magnetic stirrer. In acidic conditions, H₂SO₄ was used and the electrolysis process lasted for 30 minutes, while in basic conditions, 0.1 M KOH was used up to pH 9 and electrolysis for 24 hours. The research variables included voltage (2V and 4V) and the number of carbon electrodes (1 pair and 4 pairs). The electrolysis results were separated using a centrifuge, washed with demineralized water, and dried in a furnace.

Main Findings: MnO₂ from electrolysis in acidic conditions tends to have a low crystalline structure, while in basic conditions it is amorphous with a larger surface area. The addition of electrodes and voltage reduces the surface area and increases particle agglomeration. Cyclic voltammetry tests show the ability of MnO₂ to reduce O₂ at all variables, in accordance with the standard oxygen reduction potential. Linear polarization tests show that MnO₂ synthesized in acidic conditions has better electrocatalytic activity than that synthesized in basic conditions.

Novelty/Originality of this study: This study contributes data on the effect of electrolysis parameters on the yield and characteristics of MnO₂ as an electrocatalyst, and shows the best synthesis conditions for application in metal-air batteries.

Practical Spectrophotometry: Exploring Maximum Absorption Peaks of Fe(SCN)₃ and CuSO₄ Solutions Using Visible Light

2025-07-11T20:05:25+07:00

Purpose of the study: This study explores simple visible light spectroscopy to measure maximum absorption wavelengths in Fe(SCN)₃ and CuSO₄ solutions, analyzing the impact of light filters on absorption spectra.

Methodology: This study exposed Fe(SCN)₃ and CuSO₄ solutions to tungsten lamp light, passing through a collimator and diffraction grating. Spectral data, recorded by a camera, compared filtered and unfiltered conditions. Absorbance, determined from light intensity differences, revealed characteristic wavelengths with maximum absorbance for each solution, visualized through wavelength-absorbance graphs.

Main Findings: The maximum absorption wavelengths for Fe(SCN)₃ were 481 nm (with filter) and 472 nm (without filter), while for CuSO₄, they were 570 nm (with filter) and 553 nm (without filter). Monochromatic filters enhanced accuracy, aligning Fe(SCN)₃ closer to theoretical values and reducing CuSO₄ deviations to 20 nm (filtered) compared to 37 nm (unfiltered).

Novelty/Originality of this study: The novelty of this study lies in the development of a simple visible light-based spectrophotometer by utilizing easily accessible tools and materials, such as tungsten lamps and CMOS cameras, to understand the maximum absorption peaks of Fe(SCN)₃ and CuSO₄ solutions. In addition, this study explores the effect of using light filters on the accuracy of spectrum data, providing a practical alternative for spectroscopy experiments in resource-limited learning environments.

Designing a Green Chemistry-Based Practical Guide: Enhancing Learning on Reaction Rates and Chemical Equilibrium

2025-07-11T20:17:29+07:00

Purpose of the study: This study aims to determine the characteristics and quality of the green chemistry-based chemical reaction rate and equilibrium laboratory manual.

Methodology: The research employed a modified 4-D development model (define, design, develop) to create a green chemistry-based practical manual. Initial stages involved analyzing student needs and curriculum compatibility. The manual was validated by experts and refined through student trials. Data were gathered via questionnaires assessing feasibility and quality, yielding a manual designed to enhance learning and environmental consciousness.

Main Findings: The validation results by material experts showed that the developed practical manual was in the very good category with a percentage of 84.38%. While the validation results by media experts obtained a very good category with a percentage of 91% and students gave responses to the practical manual showing a very good category with a percentage of 88.2%.

Novelty/Originality of this study: This study introduces a green chemistry-based practical guidebook for reaction rates and chemical equilibrium, emphasizing environmentally friendly practices. Unlike conventional manuals, it integrates sustainable materials and safety-focused procedures. By addressing gaps in practical resources and promoting ecological awareness, this research advances chemistry education by aligning hands-on learning with principles of sustainability, benefiting educators and students alike

Decoding Misconceptions in Thermochemistry: Insights from the Four-Tier Diagnostic Test

2025-07-11T21:47:30+07:00

Purpose of the study: The purpose of this study was to determine whether or not there were student misconceptions and their causes, as well as to determine the percentage of student misconceptions on thermochemistry material measured using the Four-Tier Diagnostic Test Instrument.

Methodology: This research is a descriptive study where the sample in this study was taken using purposive sampling technique. The subjects in this study were students of grade XI and XII of State Islamic High School 1 Pekanbaru. Data collection techniques used in this study were the Four-Tier Diagnostic Test, observation, interviews and documentation.

Main Findings: The study revealed 4% of grade XI and 13% of grade XII students had misconceptions in thermochemistry. Misconceptions were higher in grade XII for basic concepts (19.7%) and reaction types (13.4%), while grade XI struggled more with enthalpy calculations (6.3%). Understanding remained limited across key concepts.

Novelty/Originality of this study: It can help increase teachers' insight in the teaching and learning process, so that teachers are more aware of the explanation of the material that sometimes makes students wrong and experience misconceptions. In addition, teachers can also provide follow-up to students if misconceptions occur.