B: Chemistry

B: Chemistry (148)

GJSFR: B

This paper presents the calculation of uncertainty of measurement to determine total phosphorus in water by spectrophotometric method. For evaluation of uncertainty I identified all sources of uncertainty affecting the value of the measurement, and I have classified the important sources of uncertainty in type A and B. These were quantified and then I prepared the budget of uncertainty. ...
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Authors Valcan Angela
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Page No. 1 to 5

The new compounds 6,6-dimethyl-2-cyclopentadienylethylbicyclo[3.1.1] hept-2-ene (4) and 6,6-dimethyl-2-indenylethylbicyclo[3.1.1] hept-2-ene (5) were synthesized in 82% and 60% yield respectively using 6,6-dimethyl-2-p-toluenesulphonyloxomethylbicyclo[3.1.1] hept-2-ene (2). However, compounds -(4) and (5) were obtained in 71% and 81% yield respectively using 6,6-dimethyl-2-sulphonyloxome...
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Authors Dr. (Mrs.) Gloria Ukalina Obuzor, Dr Brian L. Booth
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Page No. 9 to 12

The influences of activated carbon (AC) and phosphorus (P) to asparagus growth were assessed under laboratory conditions. The asparagus cultivar; Gijnlim (G) of the European origin, were cultivated in different continuous replanting system. AC was incorporated into sandy soil, was amended with 15 years old root residue (RR) before the sowing of asparagus for the first, second (first repl...
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Authors Rumana Yeasmin, Satoru Motoki, Sadahiro Yamamoto, Eiji Nishihara
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Page No. 1 to 7

Flax is one of the earliest plants that has been domesticated by humans. Due to high amounts of omega-3 fatty acid, its cultivation and consumption is increasing as a healthy oil resource. In nutritional point of physiology zinc and nitrogen are two important elements in plant biosynthesis. So in this experiment, effects of three levels of nitrogen (40, 60 and 80 kg/ha) and two levels of...
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Authors Gholamhosein Homayouni, Mohammadkazem Souri, Mohammad Zarein
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Page No. 21 to 24

The assessment of water quality and suitability for drinking and domestic (cooking) purposes was carried out from Jamkhandi city of Bagalkot District. The Bore water (Ground water), Surface water (Open well water) and Municipal water were assessed by examining various physicochemical parameters such as pH, EC, TDS, TA, TH, DO, COD, BOD, Calcium, Magnesium, Chloride, Sulphate , Sodium and...
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Authors B. M. Kalshetty, R.C.Sheth, R. S. Gani, S.S.Karabasannavar, M.B.Kalashetti
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Page No. 15 to 22

This study examined kitchen resource, reasoning ability level, academic performance and retention of SS2 Chemistry students in Thermo-chemistry. Thermochemical activities in the kitchen such as, fermentation of samples of five different juices (mango, orange, pineapple, grape and paw-paw), heating capacities of five samples of wood (mango, orange, guava, almond and rubber), induced therm...
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Authors NJA CECILIA OBI. NEJI HOPE AMBA
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Page No. 9 to 13

This study reports the adsorption of Methylene Blue dye, a cationic dye used in dyeing cotton, wood and silk, on the crude and purified clay from Morocco. The adsorption experiments demonstrated that adsorption equilibrium is established after 20 minutes. Various experimental parameters were analyzed: adsorbent mass, initial dye concentration, adsorbent particle size. The experimental re...
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Authors Ghizlane Mourchid, Ibtissam Maghri, Mohamed Elkouali, Abdelkbir Kenz, Mohamed Talbi, Aicha Amougay
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Page No. 23 to 30

The critical micelle concentration (CMC) for polyoxyethylene sorbitan fatty acid esters (tween) series surfactant was determined by the fluorescence intensity technique. It has been measured against concentration of micelle at temperature range (298-348) °k . at 298°k the CMC for tween (20, 21, 40, 60 and 80) were (0.0499, 0.063, 0.0333, 0.0167 and 0.015) mM respectively....
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Authors May Essa Mahmood, Dhafer A. F. Al-Koofee
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Page No. 1 to 7

The main target of this work is to solve the transportation problems associated with the waxy crude oil particularly the deposition of paraffin wax during transportation and storage if the temperature of the crude drops below certain temperatures. This work aims to prepare different copolymers based on vinyl acetate and methacrylic acid monomers. The reactions involve copolymerization of...
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Authors Dr. Ayman M. Atta, Rasha A. El-Ghazawy, Fatma A. Morsy, Ali Mohamed Salah Ali, Abdullah Elmorsy
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Page No. 21 to 27

The amino acids profiles were determined in the whole eggs of duck, francolin and turkey consumed in Nigeria on a dry weight basis. The protein content (g/100 g) had the trend: francolin (80.1) > turkey (77.6) > duck (67.9). The highest concentrated amino acid in the three eggs was glutamic acid with values of (g/100 g): duck (13.1) > francolin (13.0) > turkey (12.1); with total amino ac...
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Authors Dr. E.I. Adeyeye
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Page No. 11 to 20