Online learning that has not been implemented properly can affect learning outcomes and the absence of learning motivation from students during online learning can also affect learning outcomes. This study aims to determine the effect of online learning and learning motivation on student learning outcomes in chemistry class X SMA /MA equivalent. The type of research conducted in this study is e…
Learning is the process of interaction between teachers and students in educational institutions which aims to achieve the expected results, through educational interactions and the goals of knowledge, attitudes and skills. Teachers play an important role in learning by providing appropriate teaching materials. Current learning still prioritizes the role of the teacher and students' activities …
Hydrazones are compounds formed from the replacement of the carbonyl group in aldehydes or ketones by condensation reactions with hydrazine. Hydrazone compounds have various activities, one of which is anticancer activity. This research aims to synthesized the hydrazone derivative compound (E)-N'-((E)-3-(2- methoxyphenyl)-1-(naphthalene-1-yl)allylidene)benzohydrazide and carry out in silico tes…
This research aims to produce valid phenomenon-based LKPD and get a positive response from users. The type of research is development research with research and development (R&D) design, with the development model being the Plomp development model. This research was carried out at the Chemistry Education Study Program, Faculty of Teacher Training and Education (FKIP), Riau University, Pekanbaru…
This research aims to produce an E-Pocket Book of secondary metabolite compounds. This research is a type of research and development or R&D using the 4-D model which consists of 4 stages, but this research is only limited to the development stage. The results of the research conducted in the form of a valid and practical e-pocket book on secondary metabolite compound material presented in an o…
Penelitian dengan penerapan model pembelajaran siklus belajar (learning cycle) untuk meningkatkan prestasi belajar siswa pada pokok bahasan laju reaksi dilaksanakan di SMA Babussalam Pekanbaru. Teknik pengumpulan data pada penelitian ini adalah teknik tes, data yang dikumpuikan terdiri dari data awal yang diambil dari nilai ulangan siswa pada pokok bahasan sebelumnya dan data akhir diperol…
Stenochlaena palustris or often called kelakai is a fern that found in the tropical and subtropical forest and it thrives on peat soils also found to grow well in sandy soils. Kelakai are widely use as vegetable and traditional medicine and are also known as natural antioxidant sources. The aim of this research was to isolate the secondary metabolics of S. palustris and to determine the antio…
Background and objectives: Laccase is a multi-copper oxidase, a green catalyst in dye bioremediation. One of the laccase producers is Trichoderma asperellum LBKURCC1 and is utilized in the bioremediation of textile dye Methyl Blue (MB). MB is a triphenylmethane dye, and is widely used in the textile industry, is toxic and difficult to degrade. Methods: The potential of T. asperellum LBKURCC1 in…
Indonesia has an oil palm plantation area of 15 million ha and production of 48.2 million tons. Riau Province has 19.5% of palm oil plantations and 2.95% of production. The amount of palm oil production can produce waste. One of them is empty palm bunches (TKS), 1 ton of palm oil produces 23% TKS. TKS contains 22- 27% lignin and 54-60% cellulose. Many technologies are used to manage organic was…
Dimethyl carbonate is a chemical commonly used as a starting material for organic synthesis in the manufacture of medicines in the medical field, chemicals for the agricultural sector, as a reactant in polyurethane production and as an additive for vehicle fuel. The manufacture of dimethyl carbonate at this factory uses an oxidative carbonylation process. This factory is planned to operate for …
Ethylene glycol is an organic compound with the molecular formula C2H6O2. It is a colorless, odorless, sweet-tasting liquid that is completely soluble in water. Ethylene glycol is widely used in the polyester industry (textiles), paint manufacturing, ink, cosmetics, and antifreeze. The main raw materials used in the production of ethylene glycol are ethylene gas and oxygen. The synthesis proces…
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…
Pre-design of a butyraldehyde factory with a capacity of 50,000/year is intended to meet domestic demand for butiraldehyde, most of which is imported and is a country's commodity product that competes internationally with exports to the Southeast Asia region. Butyraldehyde is mostly used in the production of n-butanol, which in turn is used as a solvent in the coatings industry and in the manuf…
Pre-design of a Diisopropyl Ether Plant with the Main Equipment Design of a DIPE-Acetone Distillation Column (T-103) has a production capacity of 56,000 tons/year. The raw material used in designing a diisopropyl ether factory is acetone (C3H6O) and hydrogen (H2). The processes used are the Hydrogenation and Etherification processes. The raw material preparation process begins by changing the p…
River water quality can change over time due to environmental influences. Siak River water experiences an increase in turbidity level after rain compared to before rain and the treated water is still turbid. The treated water from the IPAM is cloudy due to the inappropriate dose of coagulant given. The main treatment process to reduce turbidity is the coagulation and flocculation process. This …
Pre-design of a Butyraldehyde Plant with the Main Equipment Design of a Distillation Tower has a production capacity of 50,000 tons/year. The raw materials used in designing the butyraldehyde plant are Propylene and Syngas. The process used is the Hydroformylation or Oxo process. The raw material preparation process begins by changing the pressure and temperature of propylene and syngas to 18 b…
Asam levulinat atau 4-oxopentanoic acid merupakan senyawa yang memiliki gugus keton dan asam karboksilat. Asam levulinat sendiri memiliki banyak digunakan dalam industri seperti farmasi, bahan tambahan pada bahan bakar, produk pertanian, pelapisan material, pelarut, industri polimer, industri plastik dan lain-lain. Hingga saat ini kebutuhan asam levulinat di Indonesia masih mengimpor dari negar…
Asam levulinat atau 4-oxopentanoic acid merupakan senyawa yang memiliki gugus keton dan asam karboksilat. Asam levulinat sendiri memiliki banyak digunakan dalam industri seperti farmasi, bahan tambahan pada bahan bakar, produk pertanian, pelapisan material, pelarut, industri polimer, industri plastik dan lain-lain. Hingga saat ini kebutuhan asam levulinat di Indonesia masih mengimpor dari negar…
Imports of caprolactam are relatively large, namely around 30,000 to 35,000 tons per year. Caprolactam is produced through the Toyo Rayon Photonitrosation process. The photonitrosation process is aimed at changing the form of cyclohexane to cyclohexanone oxime through an oximation reaction with nitrosyl chloride which then goes through Beckmann preparation with trifluoroacetic acid to obtain th…
In Indonesia, polyvinyl alcohol is not yet produced domestically, so it still requires imports from other countries for domestic needs. The development of industries that use polyvinyl alcohol has led to an increase in domestic demand for polyvinyl alcohol from year to year. Polyvinyl alcohol is produced through the Alcoholysis process. Overall, the alcoholysis process is purposed at the reacti…