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All Journal EduMatika: Jurnal MIPA Strata International Journal of Social Issues IJITL
Ezeiheukwu, Chika Mary
Unknown Affiliation
Humanities Chemistry Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics

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Phytochemical Analysis of Soursop Peel, With the Extraction and Characterization of its Oil Ezeiheukwu, Chika Mary; Okongwu, Dozie John
EduMatika: Jurnal MIPA Vol. 4 No. 4 (2024): EduMatika: Jurnal MIPA
Publisher : Lembaga Riset Mutiara Akbar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56495/emju.v4i3.740

Abstract

Soursop (Annona muricata) peels was analysed for its proximate composition. It was found to contain 3.2 % dark green oil, 10.65 % crude protein, 21.3% moisture, 3.8 % ash, 12.69 % crude fiber, 31.31 % carbohydrates and 4.40 % ash. The elemental composition of the peel was determined, using Atomic Absorption Spectroscopy. It was found to contain Calcium (32.45 mg/100 g), magnesium (48.23 mg/100 g), zinc (125.15 mg/100 g), phosphorus (128.24 mg/100 g), iron (72.52 mg/100 g) and manganese (3.82 mg/100 g). Extraction of oil from the peel was also carried out using sohxlet extraction method. Some chemical Characteristics of the oil was determined. The result showed that the oil have a saponification value of 131.84 mg, iodine value of 66.68 mg/100 g, free fatty acid value of 3.64 mg, and oleic acid value of 0.1889 mg.
Availability and Usage of Laboratory Equipment for Chemistry Learning in Onitsha North Local Government Area Ezeiheukwu, Chika Mary
Indonesian Journal of Innovative Teaching and Learning Vol. 2 No. 2 (2025): IJITL, Volume 2, Issue 2 (2025): August-January Period
Publisher : Academia Edu Cendekia Indonesia (AEDUCIA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64420/ijitl.v2i2.343

Abstract

Background: Practical activities in Chemistry are vital for students' scientific skills, but the lack of laboratory equipment in Nigerian secondary schools hinders effective teaching and learning. Objective: This study investigated the availability and use of laboratory equipment for Chemistry learning in public secondary schools in Onitsha North, Anambra State, focusing on equipment availability and its usage during lessons. Methods: A descriptive survey research design was adopted. The sample consisted of 200 Chemistry students selected from 10 randomly chosen public secondary schools in the study area. Data were collected using a validated questionnaire with a reliability coefficient 0.72, determined using Cronbach's alpha. Data analysis was conducted using mean and standard deviation to answer three research questions. Results: The study revealed that laboratory equipment is not adequately available, and that the available laboratory equipment is poorly utilized in the learning of Chemistry in the selected schools. As a result, these students encounter difficulty in learning Chemistry, and lack the ability required to acquire scientific knowledge and skills. Conclusions: The study concluded that the limited availability and poor utilization of laboratory equipment negatively impact Chemistry's effective teaching and learning. Without sufficient resources, students are deprived of hands-on experiences vital for understanding scientific concepts. Contributions: This research highlights the infrastructure challenges public secondary schools face in practical science education, emphasizing the need for policymakers and educators to prioritize laboratory equipment and create an environment that supports students' scientific skill development.
Effect of Information and Communication Technology on the Interest and Achievement of Secondary School Students in Chemistry in Aguata Education Zone Ezeiheukwu, Chika Mary; Okongwu, Dozie John Okongwu; Ibe, Franklin Nnanna
Strata International Journal of Social Issues Vol. 1 No. 2 (2024): August
Publisher : CV. Strata Persada Academia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59631/sijosi.v1i2.231

Abstract

This research work investigates the impact of Information and Communications Technology instructional methods on the interest and performance in Chemistry by Senior Secondary School Students within Aguata Education Zone of Anambra State. The research design that was used in the study is a quasi-experimental pre-test, post-test and control group design from an intact class. Four research questions were raised and three hypotheses were tested at 0. 05 level of significance. The population of the study therefore included 2,644 Senior Secondary School Students Class Two from nine out of the 52 public schools in Aguata Education Zone. Chemistry Interest Inventory (CII) was the instrument used for data collection while Chemistry Achievement Test (CAT) was also used and these two were analyzed using Cronbach Alpha and Kuder- Richardson (K-20) respectively revealed a reliability coefficient of CII is 0.64) and the reliability coefficient of CAT is 0.73. For the research questions, mean and standard deviation were used to analyze the collected data. The hypotheses were tested at 0. 05 level of significance using analysis of covariance. The findings revealed that there was a significant improvement in students’ cognitive achievement and interest in chemistry due to ICT instructional packages. And, that gender does not affect the performance of students that were taught Chemistry with ICT instructional package. In light of this, it was recommended that Chemistry teachers should adopt ICT constructional methods in the teaching of Chemistry in Senior Secondary Schools.
Co-Authors Ibe, Franklin Nnanna Okongwu, Dozie John Okongwu, Dozie John Okongwu