Abstract: This research aims to produce an E-LKPD based on the CORE learning model on the subject of colligative properties of solutions in class The type of research used is Research and Development (R&D) with a modified ADDIE development model. The test subjects for this research were two chemistry teachers and twenty students who had studied the colligative properties of solutions. Data an…
Abstract The development of EXCLUSIVE learning model-based E-LKPD using liveworksheets on the subject of reaction rate aims to produce a valid E-LKPD and know the reactions of user responses. This study uses research and development (R&D) method with a 4D development model (Define, Design, Develop, Disseminate) which was carried out only until the Develop stage. The data collection instrumen…
Abstract This development research aims to produce an E-Module for chemical equilibrium based on multiple representations using iSpring suite 10 for class XI SMA/MA equivalent as a valid and suitable teaching material for use. This research uses the ADDIE. The E-Module was validated by 2 material validators and 1 media validator and tested on 2 chemistry teachers and 23 high school (SMA) stude…
Abstract This research aims to develop an ICARE-based E-LKPD using Liveworksheets on the subject of Reaction Rate, which is valid based on aspects of content suitability, ICARE characteristics, language, presentation, appearance, software utilization, and knowing user responses to the E-LKPD. This type of research is research and development (R & D) referring to the ADDIE development model. …
Abstract: This study aims to produce a module based on Explore, Diagnose, Design, Discuss, Use (ED3U) on the subject of Hydrocarbons for class XI SMA / MA which is valid based on the feasibility aspect of content, ED3U characteristics, language, serve, graphics, and to determine the user's response to the developed module. This research uses the research and development (R&D) method with a l…
A B S T R A C T This research purposed to develop E-LKPD based POE2WE as a valid teaching materials and to find out user’s response when using E-LKPD on colloid subject. It was using the research and development (R&D) method with limited 4-D development model. The procedure of this methods are (1) Define (2) Design and (3) Develop followed by one to one evaluation, evaluation to teachers a…
Abstract: This research aims to determine the improvement of learning outcomes and the category of improvement in chemistry learning outcomes on colloidal system material in class XI MIPA SMA Negeri 6 Pekanbaru through the implementation of blended learning station rotation model. The type of research used is experimental research with a Randomized Control Group Pretest-Posttest design. Data …
Abstrack: This research aims to produce an E-Module for Atomic Structure and Nanotechnology. This research is a type of research and development or R&D using a 4- D model which consists of 4 stages, but this research is only limited to the development stage. The results of the research carried out are in the form of a valid and practical electronic module (e-module) on atomic structure and na…
Abstract: This research aims to determine the improvement and categories of students' understanding of colloid system concepts by applying the science, environment, technology and society (SETS) approach in class XI MIPA at SMAN 12 Pekanbaru. The form of this research is experimental research with the research design used is Randomized Control Group Pretest-Posttest. The sample in this study …
ABSTRACT This study aims to produce e-module in the form of comic based on a scientific approach using Canva design on the subject of the colloid system in class XI SMA/MA equivalent. The type of research used in this study is Research and Development (R&D) using the ADDIE development model which consists of five stages, namely analysis, design, develop, implementation, and evaluation, but at …
Abstract: This research purposes to develop thermochemistry E-LKPD based on Self Regulated Learning (SRL) using wizer.me in class XI SMA/MA level, knowing the validity of E-LKPD based on aspects of content feasibility, Self Regulated Learning characteristics, language, presentation, graphics, E-LKPD cover design, E-LKPD content design and knowing user responses to the E-LKPD developed. This r…
Carboxymethyl Cellulose is an organic compound with the molecular formula C8H11O7Na which is a derivative of cellulose which is commonly used in various industries such as the detergent, paint, ceramics, textile, paper and food industries. The main raw materials used in making carboxymethyl cellulose using the Wyandotte Continuous Process are cellulose, monochloroacetic acid and sodium hydroxid…
Oil palm as a plant that produces palm oil and palm kernel is one of the favorite plantation crops which is a source of non-oil and gas foreign exchange for Indonesia. In Indonesia, the cooking oil most often used is palm cooking oil. This condition is caused by Indonesia being a palm oil producing country, this oil is also quite ideal in terms of price and availability. This feasibility study …
Tertiary Butyl Alcohol is an alcohol compound with the molecular formula C4H9OH. In the current industrial era, tertiary butyl alcohol is produced as a finished product and as an intermediate product. Tertiary butyl alcohol is used as a chemical solvent and also in the pharmaceutical field, while intermediate products are used as raw materials for the process of making methyl tertiary butyl eth…
Ethylene glycol is an organic compound with the molecular formula C2H6O2 which is included in simple diols, in the current industrial era ethylene glycol has an important role and is widely used as antifreeze in car radiators and as raw material for the manufacture of polyester fiber, in addition to being an auxiliary material in the latex industry and coolant in compressors. The main raw mater…
Isopropyl alcohol (C3H7OH) is a colorless, volatile and flammable liquid. Isopropyl alcohol has various uses, both as a final product and intermediate. Some examples of isopropyl alcohol as a final product are: as a solvent, the manufacture of chemicals in agriculture, additives in medicines, and antiseptic ingredients. As an intermediate product, isopropyl alcohol is used for the production of…
Hydrazone is a substituted compound with stable imine-type that has an azomethine groups (-NH-N=C-R-). These compounds have interesting biological properties, such as anti-inflammatory, antituberculosis, antitumor, antimicrobial activity, anticancer and others. The hydrazone compound with the IUPAC name (E)-N'-(3-methoxy-4-(propoxy)benziliden) isonicotinohydrazide and named as HDZ-ISZ has been…
Cassava peel (Manihot esculenta Crantz.) has the potential to be used as an adsorbent in the form of carbon used in the adsorption process to remove lead (II) ions because of its cellulose content. This study aims to determine the ability of charcoal of cassava peel in absorbing lead (II) ions. charcoal of cassava peel made by carbonization at 300°C for 120 minutes. The result showed that the …
Laccase (E.C1.10.3.2 : oxygen oxidoreductase) is a multi-copper enzyme that catalyzes oxidation process or release of substrate electrons using oxygen molecules as electron acceptors. Laccase used in this study came from Trichoderma asperellum LBKURCC1. The purpose of this study was to analyze the effect of metal ions (Cu2+, Co2+, Zn2+, Mn2+, Mg2+, and Fe2+) on the activity of laccase A and B, …
Durian peel can cause environmental problems such as unpleasant odors. The chemical composition of durian peel with cellulose, lignin, and starch content makes durian peel can be used as raw material in the manufacture of activated carbon. In this research, a comparative study of physical activation using microwave and furnace after chemical activation with KOH on the synthesis of durian peel a…