SMALL-SCALE EXPERIMENTS BY SIMPLE APPARATUS TO MEASURE STANDARD AND NON-STANDARD REDUCTION POTENTIAL
One of the lessons which is studied in Senior High School is electrochemistry, which is quite hard and often generates conceptual mistake among the students, for example reduction potential concept. There are numbers of students which only know reduction potential data which easily found on table...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/83002 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | One of the lessons which is studied in Senior High School is electrochemistry,
which is quite hard and often generates conceptual mistake among the students,
for example reduction potential concept. There are numbers of students which
only know reduction potential data which easily found on table without realizing
the main concept and how to obtain the data. This thesis was aimed to design
experiments with a different approach by using small-scale and simple appparatus
to measure standard and non-standard reduction potentials. Small-scale
experiments is one of alternative learning method which can be done at schools
with limitation in laboratory apparatus and chemicals. The small-scale
experiments have advantages that is more economical, efficient, safe, fun and
environmentally friendly. In this research, conventional experiments were done
with the same condition and chemicals. If silver applied as secondary comparator
electrode is obtained difference 0,2 %, while if copper applied as secondary
comparator electrode is obtained difference 1,15 %. The results of both
experiments were compared to statisticially with Bartlet method and Jandel
SigmaStat Statistical Software version 2.0. From the calculations it can be
concluded there are no significant differences between the results of small-scale
experiments and conventional experiments. Deliverables of this work are
experimental modules for students and experimental guides for teachers. The
electronic version were placed in an online learning system called Modular Object
Oriented Dynamic Learning Environment (MOODLE), to acquire feedback from
users. Small-scale experiments hopefully could increase students’ motivations,
improve their understanding of concepts and principles, and increase laboratory
skills in electrochemistry. |
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