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All Journal Jurnal Natur Indonesia Jurnal Pendidikan Kimia Universitas Riau Orbital: Jurnal Pendidikan Kimia Konfigurasi : Jurnal Pendidikan Kimia dan Terapan Jurnal Riset Teknologi dan Inovasi Pendidikan (Jartika) JURNAL PHOTON JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY) Perspektif Pendidikan dan Keguruan Jurnal Pendidikan dan Konseling JOM FTK UNIKS : Jurnal Online Mahasiswa Fakultas Tarbiyah dan Keguruan Universitas Islam Kuantan Singingi IJECA (International Journal of Education and Curriculum Application) JNANALOKA Ensiklopedia: Jurnal Pendidikan dan Inovasi Pembelajaran Saburai JIPMukjt:Jurnal Ilmu Pendidikan Muhammadiyah Kramat Djati Bhakti Nagori (Jurnal Pengabdian kepada Masyarakat) Jurnal Redoks : Jurnal Pendidikan Kimia dan Ilmu Kimia
Rosa Murwindra, Rosa
Dosen Prodi Pendidikan Kimia Universitas Islam Kuantan Singingi
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Physics Social Sciences Transportation Other

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PENGARUH SUHU TERHADAP PRODUKSI ASAM LEVULINAT DARI INULIN UMBI DAHLIA (Dahlia Sp.) Murwindra, Rosa; Sikumbang, Saryono; Awaliddin, Amir; Linggawati, Amilia
Sistem Informasi Vol 7 No 01 (2016): Jurnal Photon
Publisher : Fakultas MIPA dan Kesehatan Universitas Muhammadiyah Riau

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Abstract

Dahlia is a floriculture plant with tuber that rich in inulin. Inulin is soluble in hot water and it will settle on cool temperature in alcohol. The inulin extraction to use hot water from dahlia tuber take from Bukittinggi of West Sumatra. Extraction result from 100 g dahlia tuber is 4% inulin (w/w dahlia tuber), such as inulin flour is white gray. As qualitative test with Seliwanoff and Nelson-Somogyi methods, that inulin positive contain of fructose and reducing sugar. This inulin can be converted into levulinic acid using acid catalyst at high temperature. Production of levulinic acid with variate reaction temperature from 130 – 170 oC. The reaction of inulin convertion is done in ampul that burned in oven. In this experiment, conversion of inulin to be levulinic acid is high 26,25% (w/w inulin) using acid catalyst of hydrochloride acid 1 M and heating 170 oC about 15 minutes.
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE TGT (TEAM GAMES TOURNAMENTS) UNTUK MENINGKATKAN KEAKTIFAN DAN KETUNTASAN BELAJAR SISWA PADA POKOK BAHASAN SISTEM KOLOID DI KELAS XII TKJ SMK YAPIM SIAK HULU Murwindra, Rosa
Perspektif Vol 8 No 1 (2017): Perspektif Pendidikan dan Keguruan
Publisher : UIR Press

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Abstract

The research was classroom action research (CAR). The purpose was to improved student’s activeness and mastery of chemistry learning which concerned to colloid systems by using cooperative learning model type TGT (team games tournaments) at the XII grade of engineering major (TKJ) in SMK YAPIM Siak Hulu, district of Kampar, RIAU. Based on the result of research which accomplished into two cycles, I cycle and II cycle by applying cooperative learning model, particularly TGT (team games tournaments) type during chemistry teaching learning process could improve student’s activeness and score completeness of chemist learning the average presentation of students activity in I cycle was 54,59% (enough), meanwhile in II cycle was 63,52% (enough). The improvement of students learning activity presentation was followed by the improvement of students accomplishment in chemist learning at I cycle as 77,42% (STDS) and II cycle as 87,10% (STDS.).
Produksi Asam Levulinat dari Inulin Umbi Dahlia (Dahlia sp. L) Menggunakan Katalis Asam Klorida Murwindra, Rosa; Linggawati, Amilia; Yanti, Pepi Helza; Awaluddin, Amir; ', Saryono
Jurnal Natur Indonesia Vol 16, No 2 (2016)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (288.789 KB) | DOI: 10.31258/jnat.16.2.64-71

Abstract

Dahlia is a floriculture plant with tuber that rich of inulin. Inulin is soluble in hot water and it will settle on cool temperature in alcohol. Extraction of result from 100 g dahlia tuber taken from Bukittinggi, West Sumatra is 4% inulin (w/w dahlia tuber). Inulin flour produced is white gray. Qualitative tests with Seliwanoff and Nelson-Somogyi methods shows that inulin positive contained of fructose and reducing sugar. Extracted result of inulin can be converted into levulinic acid using acid catalyst at high temperature. In this experiment, production of levulinic acid will bundle with variate temperature, reaction time and catalyst concentration of hydrochloride acid. The reaction of inulin convertion was done in ampul that burned in oven. Conversion result of 5% inulin to be levulinic acid on heating 150 o C hydrochloride acid concentration 0,1 M about 25 minutes was 12,33% (w/w inulin). On heating 170 o C hydrochloride acid concentration 0,1 M about 15 minutes is 26,25% (w/w inulin), while on heating 150 o C hydrochloride acid concentration 1 M about 15 minutes is 32,28% (w/w inulin). Experiment result showed that concentration of glucose, levulinic acid and formiat acid increase with increasing in reaction reaction temperature while fructose concentration decrease from 55,14 mg/mL to be 0,12 mg/mL. The longer time reaction and the higher concentration of catalyst hydrochloride acid, the lower concentration of glucose and fructose and the larger concentration of levulinic acid and formic acid.
KINERJA GURU DALAM PEMBELAJARAN LINTAS MINAT KIMIA SEBAGAI IMPLEMENTASI KURIKULUM 2013 Murwindra, Rosa; Yuhelman, Nofri; Putri Musdansi, Dwi
Jurnal Riset Teknologi dan Inovasi Pendidikan (JARTIKA) Vol 3 No 1 (2020): Januari
Publisher : Pusat Penelitian dan Pengembangan Rekarta Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (569.956 KB) | DOI: 10.36765/jartika.v3i1.30

Abstract

Abstrak: Tujuan penelitian ini untuk mengetahui kinerja guru dalam pembelajaran lintas minat kimia sebagai implementasi kurikulum 2013. Penelitian ini merupakan jenis penelitian deskriptif kuantitatif. Pengumpulan data dilakukan dengan mengadakan kuesioner/angket, observasi, wawancara dan dokumentasi. Teknik analisis data yang digunakan yaitu analisis kuantitatif menggunakan analisis skala Likert. Hasil penelitian menunjukkan bahwa kinerja guru dalam pembelajaran lintas minat kimia terlaksana ?baik? menurut persepsi guru dengan rata-rata 3,88 dan kinerja guru dalam mengajar pada pembelajaran lintas minat kimia terlaksana ?baik? menurut persepsi peserta didik dengan rata-rata 78,77. Berdasarkan hasil tersebut dapat disimpulkan bahwa kinerja guru kimia di SMAN 2 Singingi berjalan dengan ?baik. Abstract: The purpose of this study was to determine the performance of teachers in learning cross-chemical interests as the implementation of the 2013 curriculum. This research is quantitative descriptive research. Data collection is done by conducting a questionnaire/questionnaire, observation, interviews, and documentation. The data analysis technique used is a quantitative analysis using Likert scale analysis. The results showed that the teacher's performance in learning cross-chemical interests in SMAN 2 Singingi was carried out "good" according to the teacher's perception with an average of 3.88 and the teacher's performance in teaching on chemical cross-interest learning carried out "good" according to students' perceptions with grades an average of 78.77. Based on these results it can be concluded that the performance of chemistry teachers at SMAN 2 Singingi went "good"
Implementasi Kurikulum 2013 pada Pembelajaran Kimia Di MA PP Syafa’aturrasul Teluk Kuantan Rosa Murwindra; Nofri Yuhelman
JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY) Vol 1 No 1 (2019): Pendidikan dan Pendidikan Kimia
Publisher : LEMBAGA PENELITIAN DAN PENGABDIAN MASYARAKAT (LPPM) UNIKS

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Abstract

Abstract This study aims to determined the effectiveness of the curriculum 2013 implementation in the planning, implementation and evaluation system implemented in chemistry learning at MA PP Syafa’aturrasul Teluk Kuantan. This research is a type of qualitative research with a descriptive approach. The population in this study was MA PP Syafa’aturrasul Teluk Kuantan. Sampling refers to the purposive sampling technique. Data collection was obtained through interviews, participant observation, documentation and questionnaires. Respondents consisted of chemistry teachers, Waka. Curriculum and students. The validity of the data is obtained through triangulation of data sources and data retrieval techniques. The data analysis technique used is quantitative analysis using Guttman Scale analysis and qualitative analysis, namely the Miles and Huberman models. Based on the results of the study it can be concluded that the effectiveness of the 2013 curriculum in learning chemistry at MA PP Syafa’aturrasul Teluk Kuantan runs very effectively or very well. This can be seen from the acquisition of the percentage score of each aspect namely 100% planning aspect, 94% implementation aspect and 100% evaluation aspect, so that the average results of the overall aspects obtained are 96%. Keywords: Curriculum 2013, Students, Chemistry Learning, MA PP Syafa’aturrasul Teluk Kuantan
ANALISIS KESALAHAN PESERTA DIDIK DALAM PEMBELAJARAN DI SMP AL-KINDI PEKANBARU Agus Salim Daulay; Maimunah Maimunah; Yenita Roza; Rosa Murwindra
JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY) Vol 1 No 2 (2019): Pendidikan dan Pendidikan Kimia
Publisher : LEMBAGA PENELITIAN DAN PENGABDIAN MASYARAKAT (LPPM) UNIKS

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Abstract

Abstract Mistakes in solving math problems are common for students. Most teachers often do not pay attention to the types of mistakes made by students. The types of mistakes made by students can be one of the successful benchmarks of mathematics. This study aims to describe the types of problems of students in solving mathematics problems at Al-Kindi Middle School Pekanbaru. The research method used is descriptive research with a form of qualitative research. Data collection techniques used are tests and interview, data analysis techniques used descriptive qualitative and quantitative. Subjects in the study were 26 students and objects that answered tangent questions circle 5 questions. Based on the results of data analysis it can be concluded: students make fact errors 17%, concept errors 34%, principle errors 39% and operating errors 10%. The biggest type of error is a mistake in principle and concept. The implication is that teachers need to understand the concepts and principles when teaching, so the level of errors in solving problems is low. and to the next researchers, to be able to carry out further in-depth research to improve the quality of mathematics education in schools related to students' mistakes in solving tangent circle material questions. Keywords : error analysis, tangent circle.
IDENTIFIKASI LOGAM BERAT Hg, Pb DAN Cd DI ALIRAN SUNGAI BATANG KUANTAN, KABUPATEN KUANTAN SINGINGI Asregi Asril; Rosa Murwindra; Jumriana Rahayu Ningsih
JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY) Vol 3 No 1 (2021): Jurnal Pendidikan, Ilmu Kimia, dan Pendidikan Kimia
Publisher : LEMBAGA PENELITIAN DAN PENGABDIAN MASYARAKAT (LPPM) UNIKS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/jedchem.v3i1.1307

Abstract

The identification of heavy metals Hg, Pb and Cd in the Batang Kuantan River, Kuantan Singingi Regency has been carried out successfully. Heavy metals are measured not only from their heavy metal content such as Hg, Pb and Cd but also from the pH level of the river flow itself. The research location is at the Batang Kuantan River, which is measured from 3 points. Changes in Data Observed / Measured are the quality levels of heavy metals in the waters. The research model used includes field research using survey and laboratory methods. The research design was analyzed using the Atomic Absorption Spectometer (AAS). The water sample was given HNO3 until it was acidic and filtered so that there was no sedimentation, then analyzed by AAS. Heavy metal analysis result data technique is compared with quality standard of government regulation no 82 of 2001 regarding water pollution control and water quality management. Pb did not have a problem because the levels were not found. Whereas for Cu and Cd in the category of concentration threshold for reasonableness, which ranged from 0.158-0.1598 ppm and 0.0233-0.2769 ppm.
PENGARUH PENILAIAN ETIKA TERHADAP PERILAKU MAHASISWA FAKULTAS TARBIYAH DAN KEGURUAN Dwi Putri Musdansi; Rosa Murwindra; Helbi Akbar
JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY) Vol 3 No 1 (2021): Jurnal Pendidikan, Ilmu Kimia, dan Pendidikan Kimia
Publisher : LEMBAGA PENELITIAN DAN PENGABDIAN MASYARAKAT (LPPM) UNIKS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/jedchem.v3i1.1309

Abstract

This research is a quantitative study that aims to analyze the effect of ethical judgment on student behavior at the Kuantan Singingi Islamic University (UNIKS). The population used was students of the Tarbiyah and Teaching Faculty (FTK) with the sampling technique. Random sampling used SPSS. Data collection techniques use secondary data sources and pimer, for independent variables using secondary data sources by directly requesting the FTK UNIKS archive center, while the dependent variable uses primary data sources obtained directly from the original source through the Behavior scale. The test statistic needed to test the hypothesis is the correlation coefficient between the test score as a predictor and the score of a criterion. The interpretation of the analysis results in predictive studies is based on the betha index (β) or the b score in the regression model obtained. From the results of the study it was concluded that there was an effect of ethical judgment on the behavior of FTK UNIKS students with sig = 0.00 and F = 50.524, Y = 31.5 + 0.645X
UJI TOKSISITAS EKSTRAK ETANOL DAUN KEMANGI (OCINUM SANCTUM L.) TERHADAP LARVA UDANG (ARTEMIA SALINA L.) DENGAN METODE BSLT (BRINE SHRIMP LETHALITY TEST) Alfin Surya; Rosa Murwindra; M Syahrul Fiki
JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY) Vol 4 No 1 (2022): Jurnal Pendidikan, Pendidikan Kimia, dan Ilmu Kimia
Publisher : LEMBAGA PENELITIAN DAN PENGABDIAN MASYARAKAT (LPPM) UNIKS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/jedchem.v4i1.1886

Abstract

Basil is known to contain chemical flavonoids, namely orientin and vicenin where these two compounds can protect the body from the effects of radiation.The purpose of this study was to determine the toxicity of the ethanol extract of basil leaves (Ocimum Scantum Linn). Artemia salina Leach larvae using the Brine Shrimp lethality Test (BSLT) method. This study used 3 concentrations, each of which was carried out in triples. The concentrations are 1000 ppm, 100 ppm, 10 ppm. 90 Artemia salina Leach larvae were used. Then observations were made for 24 hours. Then counted the number of shrimp larvae that died after 24 hours. The results were calculated by probit analysis and calculated LC50, obtained LC50 = 21.0523 ppm. So it can be concluded that basil leaves have toxic potential. Because the value of LC50 < 1000 ppm.
PELAKSANAAN PEMBELAJARAN DI MASA PANDEMI COVID-19 DARI SUDUT PANDANG MAHASISWA DI UNIVERSITAS ISLAM KUANTAN SINGINGI Dwi Putri Musdansi; Rosa Murwindra; Nofri Yuhelman; Windri Anita
JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY) Vol 4 No 1 (2022): Jurnal Pendidikan, Pendidikan Kimia, dan Ilmu Kimia
Publisher : LEMBAGA PENELITIAN DAN PENGABDIAN MASYARAKAT (LPPM) UNIKS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/jedchem.v4i1.1965

Abstract

This study aims to analyze the implementation of learning in the Covid-19 era from the preception of student's. This research with a quantitative approach uses a number of samples from Isaac and Micheal. The study population was all UNIKS students in the odd and even semesters of the 2020/2021 academic year. The samples taken were 341 respondents using a significance level of 1%. The sampling technique used is simple random sampling with sampling using SPSS, namely simple sampling. The sample in this study was 65.1% female and 34.9% male. The data collection technique used the "PPC-19 Perception Scale" with five alternative answer choices and the data was collected via google form. The data analysis technique used is by using the percentage formula. From the results of data analysis, it was found that the average percentage of respondents' responses related to the implementation of learning during the Covid-19 period was the largest range of choices: Strongly Agree/Like/Good, Agree/Like/Good, Moderately Agree/Like/Good.
Co-Authors A. Mualif Agus Salim Daulay Alfin Surya Alfin Surya Alhairi Alhairi Amilia Linggawati Amir Awaliddin Amir Awaluddin Asregi Asril Asregi Asril Asregi Asril Awaliddin, Amir Ayu Muslima Candra Candra Chuzairy Hanri Dwi Putri Musdansi, Dwi Putri Edi Kurniawan Elsa Wahyuni Erin Junita Haliza ulfa Helbi Akbar Idea Chen Chen Irfandi Irfandi Julia Rozanah MY Julia Rozanah. MY Jumarnis Jumarnis Jumriana Rahayu Ningsih M Syahrul Fiki Mailani, Ikrima Maimunah Maimunah Nofri Yuhelman Nora Darmayanti Pepi Helza Yanti Rabiul Yuselita Rika Susanti Saryono Saryono Sikumbang Saryono, M.Or. S.Pd. Jas. Sendra Wati Sopiatun Nahwiyah Wahidatun Muharomah Wimbi Apriwanda N Windri Anita Windri Anita Yana Aliah Yenita Roza Zaiyar Zaiyar Zul Khairi