scholarly journals THE EFFECT OF APPLICATION OF INQUIRY-BASED STUDENT WORKSHEETS ON ACID-BASE TITRATION MATERIALS ON STUDENT PERFORMANCE AND LEARNING OUTCOMES

2022 ◽  
Author(s):  
Aidil Rahmazani ◽  
Muhibbuddin Muhibbuddin ◽  
Musri Musri
Keyword(s):  
Learning Outcomes ◽  
Student Performance ◽  
Acid Base ◽  
Acid Base Titration

scholarly journals The Effect of Process Oriented Guided Inquiry Learning (POGIL) Model on Student Learning Outcomes in Acid Bases Titration Material in SMA Negeri 1 Kakas, Minahasa Regency

2020 ◽  
Vol 2 (1) ◽  
pp. 16
Author(s):  
Ratih Anita Memah ◽  
Sanusi Gugule ◽  
Dokri Gumolung
Keyword(s):  
Student Learning ◽  
Learning Outcomes ◽  
Design Research ◽  
Student Learning Outcomes ◽  
Positive Influence ◽  
Guided Inquiry ◽  
Acid Base ◽  
Average Value ◽  
Acid Base Titration ◽  
Post Test

This study aims to determine the effect of POGIL learning models on student learning outcomes on acid-base titration subject. This research was conducted in class XI MIPA 2 and XI MIPA 3 in SMA Negeri 1 Kakas. The method used is an experimental method with a post-test only control design research design. The research sample consisted of 30 students, who were randomly drawn. The experimental class uses the POGIL method, the control class uses conventional learning. Student learning outcomes data obtained from post-test scores. Analysis of research data shows that there are differences in the average value of student learning outcomes of the experimental class taught by using the POGIL method and the average value of the learning outcomes of control class students who are taught by using conventional learning on mole concept material. Data analysis using t-test at a significant level α = 0.05. Statistical analysis of student learning outcomes obtained tcount > ttable or 3,078 > 2,048. So it can be concluded that there is a positive influence between student learning outcomes using the POGIL method and student learning outcomes using conventional learning on acid-base titration subject.

Henderson Hasselbalch Relationship and Weak Acid Titration

2019 ◽  
Author(s):  
Marc Blétry
Keyword(s):  
Theoretical Framework ◽  
Weak Acid ◽  
Acid Base ◽  
Sensitive Technique ◽  
Chemistry Students ◽  
Advanced Students ◽  
Acid Titration ◽  
Acid Base Titration ◽  
Analytical Expressions

Henderson-Hasselbalch relation is generally the simplified theoretical framework used to introduce students to acid-base titration. However, it is not always valid and its limitations should be made clear to chemistry students. The appropriate parameter to evaluate its validity is K a /C 0 , in connection with Ostwald dilution law. For more advanced students, it is possible to deduce analytical expressions that always fit accurately acid-base titrations and allow an evaluation of Henderson Hasselbalch relation. Gran plot appears as a particularly sensitive technique to the breakdown of Henderson Hasselbalch relation.

scholarly journals Predicting Student Performance Using Data Mining and Learning Analytics Techniques: A Systematic Literature Review

2020 ◽  
Vol 11 (1) ◽  
pp. 237
Author(s):  
Abdallah Namoun ◽  
Abdullah Alshanqiti
Keyword(s):  
Academic Success ◽  
Student Learning ◽  
Learning Outcomes ◽  
Student Performance ◽  
Student Outcomes ◽  
Predictive Analytics ◽  
Research Work ◽  
Supervised Machine Learning ◽  
Bibliographic Databases ◽  
Learning And Teaching

The prediction of student academic performance has drawn considerable attention in education. However, although the learning outcomes are believed to improve learning and teaching, prognosticating the attainment of student outcomes remains underexplored. A decade of research work conducted between 2010 and November 2020 was surveyed to present a fundamental understanding of the intelligent techniques used for the prediction of student performance, where academic success is strictly measured using student learning outcomes. The electronic bibliographic databases searched include ACM, IEEE Xplore, Google Scholar, Science Direct, Scopus, Springer, and Web of Science. Eventually, we synthesized and analyzed a total of 62 relevant papers with a focus on three perspectives, (1) the forms in which the learning outcomes are predicted, (2) the predictive analytics models developed to forecast student learning, and (3) the dominant factors impacting student outcomes. The best practices for conducting systematic literature reviews, e.g., PICO and PRISMA, were applied to synthesize and report the main results. The attainment of learning outcomes was measured mainly as performance class standings (i.e., ranks) and achievement scores (i.e., grades). Regression and supervised machine learning models were frequently employed to classify student performance. Finally, student online learning activities, term assessment grades, and student academic emotions were the most evident predictors of learning outcomes. We conclude the survey by highlighting some major research challenges and suggesting a summary of significant recommendations to motivate future works in this field.

Direct Synthesis of 3,5-Dinitropyrazole Catalyzed by Newly Sulfated Nanosolid Superacid TiO2/ SO

2011 ◽  
Vol 391-392 ◽  
pp. 1296-1301
Author(s):  
Li Min Xi ◽  
Xin Xin Zhang
Keyword(s):  
Direct Synthesis ◽  
Sol Gel ◽  
Acid Base ◽  
Direct Transformation ◽  
Acid Base Titration ◽  
Optimal Reaction Condition ◽  
Superacid Catalyst ◽  
Average Size ◽  
Optimal Reaction ◽  
Xrd And Tem

The newly sulfated nanosolid superacid TiO2/SO4 prepared by sol-gel method was broadly characterized by acid base titration, XRD and TEM, which identified that the superfine solid TiO2/SO4 showing good dispersibility with average size of 27 nm belongs to kind of crystalline nanoparticles. With the help of the catalyst TiO2/SO4, the optimal reaction condition for direct transformation of pyrazole and nitrosonitric acid into 3, 5-Dinitropyrazole was n (pyrazol)=0.10 mol, m (TiO2/SO4 )＝1.5g, V(n-octannol)＝90mL, and V(nitrosonitric acid)＝50mL. Moreover, the optimal yield of the catalytic reaction reached up to 59.4% when the reaction time is 7 hours. The nanosolid superacid catalyst is still of high activity after regenerating eight times by calcination at 600。C.

Acid-Base Titration Curves in Disproportionating Redox Systems

1994 ◽  
Vol 71 (8) ◽  
pp. 632 ◽  
Author(s):  
Tadeusz Michalowski ◽  
Andrzej Lesiak
Keyword(s):  
Redox Systems ◽  
Acid Base ◽  
Titration Curves ◽  
Acid Base Titration

scholarly journals Studi Kelayakan Penuntun Praktikum Asam Basa Berbasis Bahan Lingkungan Menggunakan Model 3-D Dan Penerapan Metode Inkuiri Terbimbing Untuk Meningkatkan Hasil Belajar Siswa SMA Negeri 1 Tenga

2019 ◽  
Vol 1 (2) ◽  
pp. 40
Author(s):  
Gerry Lumolos ◽  
Dokri Gumolung ◽  
Joice Caroles
Keyword(s):  
Student Learning ◽  
Learning Outcomes ◽  
Base Material ◽  
Student Learning Outcomes ◽  
T Test ◽  
Guided Inquiry ◽  
Acid Base ◽  
Average Percentage ◽  
Environmental Materials ◽  
Improve Student Learning

Practicum guides are printed teaching materials that students can use in the learning process. This development research aims to determine the feasibility of an acid base-based practicum guide for environmental materials with a 3-D model and to improve student learning outcomes through practicum activities and the application of guided inquiry methods. The subject of this research was class XI IPA 1 at SMA Negeri 1 Tenga. The feasibility test for large groups has an average percentage of 88.24% which means that this practical guide is suitable for use with valid qualifications. Student learning outcomes using post test scores with the technique of statistical analysis of one sample t-test (one sample t-test). The results of the one-sample t-test hypothesis at a level of α = 5% were obtained tcount = 4.604> ttable = 1.708. The results of this study indicate that the guidelines for acid-base-based practicum for environmental materials are appropriate to be used in chemistry learning, and the use of acid-based practicum guides for environmental materials with the application of guided inquiry methods can improve student learning outcomes in acid-base material

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