oxidation reduction of cobalt (II) chloride hexahydrate (CoCl2·6H2O) and a reaction of the product with ammonium chloride (NH4Cl) and ammonia (NH3). Through iodometric and spectrophotometric analysis‚ the percent cobalt was then found in the samples of pentaaminechloridocobalt. When looking at the iodometric analysis‚ there was a mean amount of 26.29% cobalt with an average deviation of ± 1.00%. When looking at the spectrophotometric analysis‚ there was a mean amount of 15.30% cobalt with an average deviation
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Cobalt(II) Oxygen adduct complex Inorganic 461 lab 2-29-2012 Abstract This experiment uses Co(salen) as a model compound illustrating the uptake of oxygen in hemoglobin. SalenH2 was prepared as the intermediate‚ and reacted with hydrated cobalt to prepare Co(salen). Using Co(salen) the oxygen up-take was tested. The synthesis of SalenH2 produced 0.65 g. The percent yield of salenH2 was 116% on the filter paper and 105% after transferring salenH2 to a vial. The melting point of salenH2‚ was
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John’s Senior Secondary School and Junior College Mandaveli Chennai – 600028 A CHEMISTRY PROJECT “STUDY OF THE OXALATE ION CONTENT IN GUAVA FRUIT” Submitted in the partial Fulfilment of the requirement for AISSCE 2010-2011 By Abdud Dayan Adeeb Of Class XII C St. John’s Senior Secondary School and Junior College Mandaveli Chennai – 600028 A CHEMISTRY PROJECT “STUDY OF THE OXALATE ION CONTENT IN GUAVA FRUIT” Submitted in the partial Fulfilment of the requirement for AISSCE 2010-2011 By
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Botany patnawomenscollege.in/journal Explore‚ 2010‚ Page No. 63–67 Vol. II No. 2 Analysis of oxalate of fresh and stored tomato juice Devshikha*‚ Nitya Priyadarshi*‚ Sukriti Rani Prasad** *B.Sc. –II year (2008-2011)‚ Department of Botany‚ Patna Women’s College‚ Patna University **Lecturer (Guest faculty)‚ Department of Botany‚ Patna Women’s College‚ Patna University Tomatoes are most widely used vegetable in daily life. Fresh ripe fruits of tomatoes are refreshing appetizing and are consumed raw
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THE Ksp of Magnesium Oxalate ABSTRACT INTRODUCTION In this experiment the solubility product constant of the salt magnesium oxalate (MgC2O4)will be determined. The system of interest exists as a solid in equilibrium: Precipitation reaction of EXPERIMENTAL METHODS Preparation of the 0.15M Potassium Permanganate (KMnO4) solution {text:list-item} B. Prepare precipitation mixtures 1. Obtain three labeled 20-mL vials from the cart. 2. Burets are set up in the lab with 0.250 M
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The aim of the present study is to use detail diagnostic characters and instrumental validation for authentication of a traditionally important herbal drug known as “Vidari” in local Indian market. Vidari drug has four different botanical entities namely Pueraria tuberose DC (P.t) (family: Leguminosae)‚ Ipomoea mauritiana Jacq (I. m) (family: Convolvulaceae)‚ Adenia hondala de Wide (A. h) (family: Passifloraceae) and Cycas circinalis (C. c) Linn (family: Cycadaceae). In this study morphological
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Calcium oxalate (CaOx) being a major inorganic constituent of human kidney stones‚ contributes around 70-80% of the kidney stone. In India‚ approximately 5-7 million patients are suffering from kidney stone disease [6] (Kaladhar et al.‚ 2012). Urinary oxalate is found to be a major factor for calcium oxalate stone formation. As the molar ratio of oxalate-to-calcium is normally 1:10‚ slight changes in urinary oxalate concentration may cause crystallization and stone
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Cobalt Wedding Bands Review Cobalt wedding bands are crafted having a super strong metal that mixes an incredibly higher level of sturdiness using the vibrant reflective appearance of white gold or platinum. Using the many pros cobalt engagement rings have to give you‚ cobalt rings might even at some point exceed tungsten and titanium wedding rings. To discover if this sounds like the best metal for the wedding ring‚ and also to begin to see the benefits and drawbacks of cobalt plus how cobalt
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1. Present the discrepancies of business practices‚ policy and strategy between the 2 countries Cobalt Systems is a multinational corporation present in more than 50 countries divided into regions. Cobalt Systems is a highly centralized organization as all the operations throughout the world are overseen by 13 US based ‘Management Board’ members. The company large number of layers between the Management Board and the local employees (hierarchical organization) doesn’t allow much room for
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Linkage isomerism in cobalt(III) complexes Author: M Hurley Abstract Preparation of nitrito-kO-complex was prepared by ligand substitution from a chloridio-complex chemically made. The nitro-kN-complex was then prepared by isomerisation of the nitrito-kO-complex. Visible absorption and infrared spectroscopy was then carried out on all three complexes. The molar absorption coefficients calculated were 38.0 cm-1 mol-1 L for the chloridio-complex‚ 76.0 cm-1 mol-1 L for the nitrito-kO-complex
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