Works Under Chemistry

ANALYSIS OF DIFFICULTY LEVEL OF THE COURSE IN NIGERIA CERTIFICATE IN EDUCATION (NCE) CHEMISTRY CURRICULUM: PRE-SERVICE TEACHERS PERSPECTIVES IN GOVERNEMNT OWNED COLLEGES OF EDUCATION IN ENUGU

INTRODUCTION Chemistry is one of the essential science subjects. According to Oxford Advanced Learners Dictionary (2008), chemistry is the branch of science that deals with the composition and properties of substances and various elementary forms of matter. Mifflin (2011) defined chemistry as the science of the composition, structure, properties and reactions of matter especially of atomic and molecular systems. Sarah (2015) defined chemistry as a physical science and the study of the pr...

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OGIRI REUBEN Premium 57 PAGES (3900 WORDS) Chemistry Project 472 Views 0 Orders
ANTIMICROBIAL AND PHYTOCHEMICAL ACTIVITIES OF Datura stramonium (GEGEMU LEAVES)

1.0 INTRODUCTION Daturastramoniumis an annual herb, with stem erect and spreading branches above. It is common in the waste land, fields and gardens in Baghdad district. Leaves, seeds and roots contain the alkaloid daturine (a mixture of the two alkaloids hyoscyamine and atropine) and also contain scopolamine alkaloid (Hyosine) acids, tannin and fatty oil. Plants are rich source of secondary metabolites with interesting biological activities (Palombo and Semple, 2001; Koduruet al., 2006)...

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Emmanuel David Premium 29 PAGES (4498 WORDS) Chemistry Project 46 Views 0 Orders
Application of Chemometric Technique in the Determination of the Chemical Facies of Groundwater Pollution Assessment in the Shallow Marine Aquiferous Sandstone in Udi and Environs

ABSTRACTThis paper examines the hydrochemical facies of groundwater present in the shallow marine Plain Sands aquifer of Udi and its immediate environs, maps their areal distribution and attempts to explain the controlling processes responsible for the various facies. 12 water samples were collected from wells tapping the shallow marine Plain Sands aquifer of Udi and environs and analyzed for various parameters including pH, total dissolved solids (TDS), K, Na, Ca, Mg, Cl, NO3, Fe, Pb, TH, Ac...

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MATTHEW NNAMANI Premium 96 PAGES (12590 WORDS) Chemistry Project 747 Views 0 Orders
Chemical composition and biological activity of Allium sativum essential oils against Callosobruchus maculatus

ABSTRACTIn order to search for alternative control methods to synthetic pesticides, the potential of essentialoils from Allium sativum (L.) (Alliaceae); was evaluated as fumigants against Callosobruchus maculatus (fab.)(Coleoptera: Bruchidae), a pest that attacks pulses during storage. Chickpea seeds were infested with 10 pairsof newly emerged weevils and, fumigated with 0, 1, 2, 3, or 4μl of essential oils of garlic/l of air. The essentialoils of garlic were analyzed by GC-MS. The major com...

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Sunny Gabriel 9 PAGES (892 WORDS) Chemistry Essay/Paper 686 Views 0 Orders
CHEMISTRY INTEGRATED RESOURCE PACKAGE

Chemistry 121 practice midterm 2: Part A - Multiple choice questions

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Muse Kunne 12 PAGES (2000 WORDS) Chemistry Book Note/Review 0 Views 0 Orders
CORROSION BEHAVIOUR OF METALS/ALLOYS WITH AND WITHOUT COATING AT HIGH TEMPERATURE (200 – 1000OC) AND UNDER MARINE ENVIRONMENT

INTRODUCTIONCorrosion is the deterioration a material undergoes as a result of its interaction with its surroundings. Although this definition is applicable to any type of material, it is usually reserved for metallic alloys. Of the 105 known chemical elements, approximately eighty are metals , and about half of these can be alloyed with other metals, giving rise to more than 40,000 different alloys. Each of the alloys will have different physical, chemical, and mechanical properties, but all...

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Nnenna Kalu Premium 15 PAGES (2901 WORDS) Chemistry Essay/Paper 827 Views 0 Orders
Detergent types

AbstractF-Sulfo Fatty Methyl Esters  sulfonates (F- MES) are new anionic surfactants  obtained via sulfoxidation of fatty acid methyl esters (FAME) with SO2, O2, and ultraviolet light of appropriate wavelength.  The designation of  Φ refers to the random positioning of SO3 in...

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Oleja Victor 22 PAGES (5510 WORDS) Chemistry Project 0 Views 0 Orders
Determination Of Heavy Metals In Some Cosmetic Products Commonly Used Among Students Of Kaduna Polytechnic

ABSTRACTThe toxicity of heavy metals to humans as a result of long term exposure to pollutants consumer products such as cosmetics and other pollutants has been established. In this study, the levels of heavy metals in different cosmetic products commonly used among Kaduna Polytechnic students were assessed. The cosmetics were analyzed for heavy metals (chromium, copper, nickel and lead) using Atomic Absorption Spectrophotometer (AAS) after digestion with concentrated   HNO3 and HCl acid...

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Ubong Udokop Premium 38 PAGES (6775 WORDS) Chemistry Project 1300 Views 0 Orders
Effect of dye and bleaches on hair

1.0    INTRODUCTIONHair coloring is the practice of changing the hair color. The main reasons for this are cosmetic, to cover gray hair, to change to a color regarded as more fashionable or desirable, to restore the original hair color after it has been discolored by hairdressing processes or sun bleaching. Hair dyes generally contain dyes, modifiers, antioxidants, alkalizers, ammonia and a mixture of other compound used to impart different qualities to hair depending on the ha...

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Arise Olajide 32 PAGES (1540 WORDS) Chemistry Seminar 0 Views 0 Orders

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