ABSTRACT Cyclohexanol is an intermediate compound that plays a vital role in the chemical industry, particularly as a primary raw material in the production of nylon 6 and nylon 66. As the textile and plastic industries continue to grow both in Indonesia and globally, the demand for cyclohexanol has consistently increased. In response to this opportunity, a cyclohexanol plant is designed with …
ABSTRACT Chloroacetic acid has the molecular formula ClCH2COOH is a compound in the form of a colourless or transparent crystalline solid with hygroscopic properties, which absorbs water from its environment. Chloroacetic acid is produced from the chemical reaction between acetic acid and clorine gas as the main ingredient with anhydrous acetate as a catalyst, this product is obtained thro…
ABSTRACT The design of a dimethyl terephthalate (DMT) plant with a capacity of 40,000 tons/year to meet the raw material needs of the polymer industry in the production of polyethylene terephthalate, which is still imported. The location of the plant was chosen Karanganyar Village, Jenu District, Tuban Regency, East Java Province based on the need for paraxylene raw materials, water sources, t…
This final project discusses the determination of solutions to the nonlinear Dio- phantine equation x3 + y3 = z2 over the ring of Gaussian integers for the special case x ≠ y. The solution approach employs exponential properties, elementary algebra, and a method of separating the real and imaginary parts of complex expressions. Since the analytical method used here is based on simple algebra-…
Penelitian ini dilatarbelakangi oleh rendahnya kemampuan komunikasi matematis peserta didik serta keterbatasan Lembar Kerja Peserta Didik (LKPD) yang dirancang khusus untuk memfasilitasi kemampuan komunikasi matematis berdasarkan Kurikulum Merdeka. Sebagai fasilitator pembelajaran, guru perlu menyediakan LKPD yang mendukung kemampuan komunikasi matematis, khususnya bagi peserta didik fase D. Ke…
Penelitian ini dilatarbelakangi oleh rendahnya kecakapan pemecahan masalah matematis peserta didik. Proses pembelajaran masih berpusat pada guru, sehingga peserta didik cenderung pasif dalam kegiatan pembelajaran di kelas dan belum mampu untuk memecahkan masalahnya sendiri. Peserta didik kurang memahami soal-soal pemecahan masalah disebabkan karena peserta didik kesulitan memahami informasi pad…
Penelitian ini dilatar belakangi oleh rendahnya kemampuan pemahaman konsep matematis siswa di Indonesia dan masih terbatasnya penggunaan LKPD yang disusun berdasarkan Kurikulum Merdeka oleh guru sebagai sarana penunjang pembelajaran. Sebagai fasilitator pembelajaran, guru perlu menyediakan LKPD yang mendukung pengembangan kemampuan pemahaman konsep matematis, khususnya siswa fase E. Kemampuan p…
Penelitian ini dilatarbelakangi oleh pentingnya instrumen tes untuk melatih, mengukur kemampuan representasi matematis peserta didik. Sehingga sangat diperlukan suatu penelitian pengembangan instrumen tes kemampaun representasi matematis. Instrumen tes yang dikembangkan meliputi kisi-kisi soal tes, kartu soal, dan rubrik penilaian. Instrumen tes kemampuan representasi matematis yang dikembangka…
Abstract: This study aims to produce a valid and practical Problem Based Learning (PBL) module to facilitate the mathematical problem-solving ability of phase D students on the topic of curved-surface solid shapes. This research employed the Research and Development (R&D) method using the 4D development model (Define, Design, Develop, Disseminate). The research instruments consisted of expert v…
Penelitian ini dilatarbelakangi oleh pentingnya kemampuan berpikir kreatif matematis siswa yang merupakan salah satu tujuan pembelajaran Kurikulum Merdeka. Namun, faktanya kemampuan berpikir kreatif matematis (KBKM) siswa khususnya pada materi Statistika masih rendah. Rendahnya pencapaian peserta didik khususnya indikator KBKM disebabkan karena siswa terbiasa menyelesaikan soal rutin yang hanya…
This study aims to determine the effect of self-efficacy on the learning achievement of class XI students in chemistry subjects at SMAN 12 Pekanbaru. This type of research is a survey research with a quantitative approach. Data collection methods in this study are questionnaires and documentation. The validated self-efficacy questionnaire was distributed to a sample of 140 students selected thr…
This study aims to determine the improvement of students' problem-solving ability in acid-base material through the application of the Problem Based Learning (PBL) learning model in class XI of SMAN 7 Pekanbaru. This study uses a quantitative method with a one group pretest-posttest pre-experimental design. The research sample consisted of 36 students selected through a simple random sampling t…
This study aims to determine the influence of interpersonal intelligence and learning independence on students' chemistry learning outcomes in grade X of SMA/MA or equivalent. This research employed a quantitative approach using a survey method. The sample consisted of 152 grade X students from SMA Negeri 15 Pekanbaru. The instruments used were questionnaires and documentation of students’ ch…
This study aims to determine the effect of learning styles and learning discipline on the learning outcomes of class X students in chemistry subjects, both partially and simultaneously at SMA Negeri 15 Pekanbaru. This type of research is a survey research with a quantitative approach. The data collection methods in this study are questionnaires and documentation. The validated interpersonal com…
This research aims to determine the influence of self-regulation and learning motivation on the Chemistry learning outcomes of Grade X students at SMA Negeri 1 Lirik. A quantitative approach with a descriptive method was employed. The sample consisted of 176 students selected through total sampling technique. The instruments used included self-regulation and learning motivation questionnaires, …
Abstract: This reseach aims to determine the effect of self-efficacy on the chemistry learning outcomes of 10th grade student at SMAN 15 Pekanbaru. This was quantitive research with correlational design. Data collection methods included a self-efficacy questionnaire consisting of 20 statements and chemistry learning outcomes obtained from documentation. The population consisted of all 10th grad…
This study aims to develop an Electronic Student Worksheet (E-LKPD) based on the ARCS motivational model (Attention, Relevance, Confidence, Satisfaction) using the Liveworksheets platform, focusing on the topic of chemical equilibrium for grade XI senior high school students. The research was motivated by the low student motivation and learning outcomes resulting from the use of conventional, l…
This research aims to develop an E-LKPD (Electronic Student Worksheet) based on REACT (Relating, Experiencing, Applying, Cooperating, Transferring) using Wizer.me for the topic of Thermochemistry for 11th-grade high school/equivalent students that is valid based on several assessment aspects. The method used is R&D with the ADDIE model (Analysis, Design, Development, Implementation, Evaluation)…
Abstract: This study aims to analyze the utilization of Instagram as a social media platform in the development of the flower board business "Bening Florist" located in Air Dingin Subdistrict, Pekanbaru City. A descriptive qualitative method was employed, with data collected through observation, interviews, and documentation with the business owner. The findings reveal that Instagram plays a si…
Abstract : This research aims to find out the influence of entrepreneurship education and family economic conditions on students' entrepreneurship interest. The method used is descriptive quantitative with multiple linear regression approach. The population in this study is all students of class XI with expertise in Online Business and Marketing of SMK Negeri 1 Pekanbaru with a total population…