The mixture of cooking oil and premium has not been widely utilized as a fuel for rose stoves. So far, a vast majority of people use kerosene in rose stoves, however the cost is very expensive. The purpose of this research was to find the alternative fuels in order to replace kerosene for rose stoves. To obtain the best fuel performance, the ratio used cooking oil and premium mixture varies…
Essential oils are volatile oils or flying oils which are generally liquid and are obtained from plant parts, roots, bark, stems, leaves, fruit, seeds or flowers by distillation. Plants that contain essential oils and have the potential to be developed are lemongrass and white ginger rhizome. The purpose of this study was to utilize natural local commodities in the form of lemongrass stalks…
Essential oils are volatile oils or flying oils which are generally liquid and are obtained from plant parts, roots, bark, stems, leaves, fruit, seeds or flowers by distillation. Plants that contain essential oils and have the potential to be developed are lemongrass and white ginger rhizome. The purpose of this study was to utilize natural local commodities in the form of lemongrass stalks…
E-waste as printer casing is plastic that resistant to chemicals, stable to heat, strength and gristly. One of the efforts to reduce e-waste is to utilize it as a brick for building materials. The purpose of this research is to use the casing of printer waste as substitute for some sand on the Production of bricks, to determine the influence of variation in the refined printer chasing on dr…
The influence of Spent Bleaching Earth (SBE) and carbonate lime variations on the quality of bricks is one alternative in order to find alternative variations to the quality of bricks. The characteristic of SBE and carbonate lime almost resemble sand, but have finer particles, therefore both of these materials were used in this research as a substitute for some sand in brick making. The pur…
Hand washing soap was a special liquid soap for washing hands to make it clean, fragrant, soft, and safe for the skin. During the Covid-19 pandemic, hand soap was needed to maintain cleanliness. This study aims to make hand soap with a variation in the addition of the amount of texapon and to compare it with the SNI 2588-2017 parameters. The variation in the number of texapon used was 5; 15…
Used paper is one of the potential sources of fiber which can be used as an alternative raw material for wood for making paper by recycling. This study aims to study the process of making recycled paper using a statistical process control (SPC) method, to determine the characteristics of the recycled paper produced, including moisture content (%), paper thickness (mm) and paper gramature (g…
Used paper is one of the potential sources of fiber which can be used as an alternative raw material for wood for making paper by recycling. This study aims to study the process of making recycled paper using a statistical process control (SPC) method, to determine the characteristics of the recycled paper produced, including moisture content (%), paper thickness (mm) and paper gramature (g…
Hand washing soap was a special liquid soap for washing hands to make it clean, fragrant, soft, and safe for the skin. During the Covid-19 pandemic, hand soap was needed to maintain cleanliness. This study aims to make hand soap with a variation in the addition of the amount of texapon and to compare it with the SNI 2588-2017 parameters. The variation in the number of texapon used was 5; 15…
The mixture of used cooking oil with pertalite has not been widely used by people to fuel rose stoves. In general, kerosene is used as fuel for rose stoves, but kerosene is very expensive. This study aims to find alternative fuels to replace kerosene for rose stoves. To get the best performance of Mawar's stove, a variation of the ratio of used cooking oil-pertalite (9: 1 and 8: 2) mixture …
The influence of Spent Bleaching Earth (SBE) and carbonate lime variations on the quality of bricks is one alternative in order to find alternative variations to the quality of bricks. The characteristic of SBE and carbonate lime almost resemble sand, but have finer particles, therefore both of these materials were used in this research as a substitute for some sand in brick making. The pur…
The mixture of used cooking oil with pertalite has not been widely used by people to fuel rose stoves. In general, kerosene is used as fuel for rose stoves, but kerosene is very expensive. This study aims to find alternative fuels to replace kerosene for rose stoves. To get the best performance of Mawar's stove, a variation of the ratio of used cooking oil-pertalite (9: 1 and 8: 2) mixture …
E-waste as printer casing is plastic that resistant to chemicals, stable to heat, strength and gristly. One of the efforts to reduce e-waste is to utilize it as a brick for building materials. The purpose of this research is to use the casing of printer waste as substitute for some sand on the Production of bricks, to determine the influence of variation in the refined printer chasing on dr…
Soap is a cleanser made by the chemical reaction between potassium or sodium with fatty acids from vegetable oils or animal fats, while Hand Wash that was a specifically liquid soap for washing hands to be clean, fragrant, soft, and safe for the skin. However, during the 19th pandemic, hand washing soap was needed because it was needed to break the chain of the virus from spreading. The pur…
Soap is a cleanser made by the chemical reaction between potassium or sodium with fatty acids from vegetable oils or animal fats, while Hand Wash that was a specifically liquid soap for washing hands to be clean, fragrant, soft, and safe for the skin. However, during the 19th pandemic, hand washing soap was needed because it was needed to break the chain of the virus from spreading. The pur…
Assessment is an essential component in the administration of education, since an attempt to improve the quality of education can be conducted through improving learning and the quality of the assessment system. The assessment process covers collecting evidence to find out the learning achievement (competency achievement) of the students. The competency achievement depends on the implementation…
Development research aims to: 1) develop chemoentrepreneurship- based chemistry student worksheets. 2) Knowing the validity of chemoentrepreneurship-based student worksheets. 3) Determine the interests of chemistry teacher candidates by using chemoentrepreneurship-based student worksheets. This type of research is research and development with the design chosen is the Plomp development design, …
The assessment instrument is an integral part of an assessment process in learning. Assessment instruments include tests and a grading system. The assessment instrument is designed to determine the level of understanding of students after learning a competency. Achieving the real goal of learning chemistry requires the use of assessment instruments that not only include rote memorization a…
Chemistry learning objectives can be achieved if students are actively involved in the learning process by applying an inquiry model that can help students find their own concepts and can practice science process skills. The application of the Vee diagram assisted inquiry model can improve conceptual understanding which in turn will improve the science process skills of students, especially in …
The research that has been done is the development of e-LKPD based on Guided Inquiry to improve the communicative and collaborative character of students. This research is motivated by the lack of teaching materials in the form of e-LKPD based on guided inquiry. This study aims to improve the communicative and collaborative character of students through the development of an Electronic Stu…