2 publications
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Published Subscription
EFFECTS OF THE LABORATORY ASSISTED LECTURE METHODS ON ACADEMIC ACHIEVEMENT OF GRADE 8 STUDENTS IN CHEMISTRY SUBJECT IN FINOTE SELAM WOREDA, AMHARA REGIONBy Tadele Ageru Alemu
Abstract: In Science education, laboratories are considerably important because they provide the opportunity for students to perform various hands-on activities. The aim of this study was to examine the comparative effects of the laboratory assisted and lecture methods on primary school students’ achievements in chemistry subject. With this aim, four research questions and four hypotheses guided the study. Sixty six (66) students (12 male and 11 female in the experimental group …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 4, Issue 2, 2018 · pp. 1–9 Read article →
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Published Subscription
EFFECT OF GLUCOSE ON PHYSICO-CHEMICAL PROPERTIES OF SOME SURFACTANT SOLUTIONSBy Tadele Ageru Alemu
Abstract: Physico-chemical and thermodynamic studies of some aqueous surfactant solutions were carried out by employing conductance and dye solubilization (UV-Vis absorption spectroscopy) techniques. From the above measurements, critical micelle concentration (CMC) and thermodynamic properties of micellization (ΔGomic , ΔHomic and ΔSomic) have been obtained for an anionic [Sodium dodecyl sulphate (SDS)],a cationic [hexadecyl trimethyl ammonium bromide, (HTAB)] and non ionic (Tween-20) surfactant solutions. Effect of mixing cosolute on CMC and thermodynamics …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 4, Issue 1, 2018 · pp. 1–22 Read article →