"Oxalate ion in gvava fruit" Essays and Research Papers

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    Orange Battery

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    SCIENCE INVESTIGATORY PROJECT ORANGE BATTERY (ENERGY DERIVED FROM ORANGES) Submitted By: GROUP 4 I – Alpha Centauri Leader: Jake Russell S. Arevalo Members: Iris A. Gervacio Shara Lyn R. Castrillo Mary Claire A. Malata Ivhan S. Sancho Submitted To: Teacher Hazel F. Solis TABLE OF CONTENTS I. ABSTRACT 2 II. INTRODUCTION 3 III. REVIEW OF RELATED LITERATURE 4 IV. METHODOLOGY 6 V. FINISHED PRODUCT 9 VI. CONCLUSION

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    Water and Citric Acid

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    Chapter I Problem and its Background A. Introduction Chelating agent is a compound that combines with metal ions to form stable ring structures. It is used to reduce the concentration of free metal ion in solution by complexing it. From the Greek term “chela” that means “the great claw” of the lobster or other crustaceans‚ chelate‚ root word for “chelating”‚ suggests the way in which an organic compound “clamps” onto the cationic element‚ which it chelates. In order for a compound to be

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    Coordination Complex Lab

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    Complex A sample of copper sulfate pentahydrate (6.285g) was weighed out. The copper sulfate pentahydrate was dissolved in water (11.99mL) in a 250mL beaker. The solution was heated on a hot plate to 90 degrees Celsius. A sample of potassium oxalate monohydrate (10.006g) was dissolved in water (50.0mL).

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    used are classified as radiation‚ flammable or explosive hazards. Some of the chemicals however‚ are classified as toxic. There are three main components of glow sticks that are considered toxic: dibutyl phthalate‚ hydrogen peroxide and pthalic oxalate esters. Dibutyl phthalate is a colorless organic liquid that is used as a plasticizer (additives that make

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    The element calcium’s name first originated from the Latin name “calx” which means “lime”. It was first discovered in England during the year 1808 by Sir Humphry Davy. He was able to separate calcium into a pure metal by doing an electrolysis process on a mixture of lime HgO‚ which is mercuric oxide. However‚ Sir Humphry Davy was not able to do this until after he found out Berzelius and Pontin electrolysed lime into mercury which constructed calcium amalgam. Although he discovered calcium in 1808

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    Alumina yield

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    Alumina Yield in the Bayer Process; Past‚ Present and Prospects Edited by TMS (The Minerals‚ Metals & Materials Society)‚ 2007 ALUMINA YIELD IN THE BAYER PROCESS PAST‚ PRESENT AND PROSPECTS Roelof Den Hond1‚ Iwan Hiralal2‚ Ab Rijkeboer3 Alcor Technology‚ Clinckenburgh 10‚ 2343 JH Oegstgeest‚ The Netherlands 2 Hiracon‚ Prinses Irenelaan 2‚ 2273 DD Voorburg‚ The Netherlands 3 Rinalco‚ Helmlaan 16‚ 2244 AZ Wassenaar‚ The Netherlands 1 Keywords: hydrate‚ alumina‚ yield‚ liquor productivity

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    potato battery

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    battery‚ there is a transfer of electrons between the zinc coating the galvanized nail that will be inserted into the potato and the copper wire that will be inserted another part of the potato. The potato conducts electricity‚ yet keeps the zinc ions and copper ions separate‚ so that the electrons in the copper wire are forced to move (generate current). It’s not enough power to shock you‚ but the potato can run a small digital clock. Materials for a Potato Clock You may have the supplies for the potato

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    Taro Tuber Lab Report

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    Taro corms are highly perishable owing to their high moisture content. Processing removes the water which reduces the bulk and also increases their storage life. The method of processing‚ ranging from simple boiling to elaborate fermentation‚ drying and grinding to make flour may vary depending on the varieties of roots and tubers. The taro flour production from fresh tuber soon after harvest serves as an effective procedure against storage loss. Converting fresh edible tubers to flours will avoid

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    Food Chemistry

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    received in revised form 25 November 2004; accepted 25 November 2004 Abstract Antioxidant activity and hepatoprotective potential of Phyllanthus niruri‚ a widely used medicinal plant‚ were investigated. Methanolic and aqueous extract of leaves and fruits of P. niruri showed inhibition of membrane lipid peroxidation (LPO)‚ scavenging of 1‚1-diphenyl-2picrylhydrazyl (DPPH) radical and inhibition of reactive oxygen species (ROS) in vitro. Antioxidant activity of the extracts were also demonstrable

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    Erlenmeyer Synthesis

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    In the second separation of this experiment‚ the Erlenmeyer flask with the first filtrate was put into a beaker so the filtrate was in the beaker. The beaker was then heated on a hotplate until near boiling. After the whey protein had precipitated‚ a vacuum filter was used to filter out the whey. These proteins were then air-dried. A qualitative test was done to indicate that the sample extracted was the protein whey. Again‚ a small test tube was used and 2 mL of protein test solution was put in

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