Analisis Pembelajaran Kimia Menggunakan Media Modul Pada Siswa Kelas X SMK Negeri 3 Merauke

This study aims to analyze the implementation of chemistry learning using module media in terms of student achievement and student responses to the use of modules. This type of research is a descriptive quantitative method. Data collection techniques in the form of test results, observation, interviews, and the results of student questionnaire responses. The research subjects were students of class X Building, totaling 24 students. The results showed that learning chemistry using media modules followed the steps in the form of preparation of study material, practice exercises and evaluation of learning achievement. The use of modules in chemistry learning increases student learning achievement from 48.38 to 78,18. Students also gave a positive response to the use of modules in learning, namely 90% in the feasible category. Another thing that was observed was the implementation of learning supported by internal factors in the form of teacher and student readiness, the mastery of the study material, learning motivation, and the appropriateness of the task with the study material. In addition there is also support from external factors such as the family environment, relationships, and schools. KeywordsLearning, Chemistry, Modules, Learning Achievement, Student Response

Synthesis and Characterization Of Silver Nanoparticles Using Water Extract of Sarang Semut (Myrmecodia pendans) For Blood Glucose Sensors

The principles of green chemistry in nanotechnology is one of the key issues in nanoscience research. Biosynthesis of nanoparticles using plant extract is an eco- friendly approach which eliminates the need for using physical and chemical techniques. A green synthetic route for the production of stable silver nanoparticles (AgNPs) by using aqueous silver nitrate as metal precursor and Myrmecodia pendans extract as bioreductor and PVA as stabilizer is being reported for the first time. In this case, the synthesis of silver nanoparticles (AgNPs) was carried out by reduction method. The bio-reduction and stabilization of so formed silver nanoparticles was monitored by UV-Vis spectrophotometry. Maximum absorption of AgNPs using Polyvinyl Alcohol (PVA) was at wavelength 408.50 nm, whereas that of AgNPs without using PVA was at wavelength of 408 nm. SEM images showed that the morphology of AgNPs was globular. An average size of silver nanoparticles using PVA and without using PVA was 78.3 and 76.1 nm, respectively. The results of X-Ray Diffraction (XRD) displayed the same peak pattern with that of the standard silver metal showing that the resultant particles are silver nanoparticles having FCC structure. Analysis of glucose levels in blood using silver nanoparticles based sensors showed glucose concentration of 71.71 mg / dL

Analisis Kandungan Aluminium Dalam Kaleng Bekas Untuk Pembuatan Tawas

Tujuan Penelitian ini untuk menganalisis kandungan aluminium dari kaleng bekas minuman yang merupakan limbah masyarakat. Kaleng bekas yang digunakan pada penelitian ada 4 jenis yaitu bear brand (putih), yeos cincau, larutan penyegar cap kaki 3 serta milo. Penelitian ini menggunakan metode sebagai berikut menyiapkan sampel, preparasi bahan, pelarutan,  pengendapan, pemanasan, pengenceran, pencucian dan pengeringan. Analisis kadar aluminium menggunakan ICP OES. Hasil penelitian didapatkan bahwa kandungan aluminium pada kaleng bekas    &nbsp