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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distilled water‚ glass rod‚ 250 cm3 volumetric flask‚ filter funnel‚ dropper‚ burette‚ stand‚ beakers X 2‚ 100 cm3 pipette‚ 25 cm3 pipette filler‚ sodium carbonate mixture‚ 250 cm3 conical flasks X 3‚ white tile‚ phenolphthalein‚ methyl orange indicator Procedure Part I 1. Transfer 10.00g of the sample onto the watch glass and weigh it to the nearest 0.01g. 2. Prepare a solution of the sample in 250 ml volumetric flask. 3. Using the funnel‚ rinse the burette with the hydrochloric acid and fill
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Substance | Structure | M.W. g/mol | Density g/cm^3 | MP (C) | Hazards | Naphthalene | | 128.17 | 1.14 | 80.26 | White crystalline solid‚ with odor | benzophenone | | 182.217 | 1.11 | 47.9 | Barely hazardous‚ don’t get in contact with eyes or skin | Methanol | | 32.04 | 0.79 | -98 | Extremely flammable | Petroleum ether | | 86.18 | 0.77 | -95 | Extremely Flammable | Procedure: 1. 2. Add 80mg of naphthalene to Craig tube. Add few drops of methanol hot solvent. 3. Place tube
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i Chapter 6 Measurement of Precipitation CONTENTS 6.1 Definitions and Units ............................................................................................................ 1 6.2 Observation Instruments ..................................................................................................... 1 6.2.1 Cylindrical Rain Gauges and Ordinary Rain Gauges ................................................ 1 6.2.2 Siphon Rain Gauges ............................................
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Experiment No ____ 2.0 hours D1=2‚D2=1‚D3=0 The Effect of Temperature on the Solubility of Carbon Dioxide in Water under Constant Pressure Beijing World Youth Academy Subject: Chemistry Student name: YeiYoung Choo Candidate number: 000791 011 January 21‚ 2009 Teacher Helen Xu The Effect of Temperature on the Solubility of Carbon Dioxide in Water under Constant Pressure (Evaluated for Design) Research Question What is the effect of temperature on
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#15 Synthesis of Ethyl Salicylate from Salicylic Acid ____________________________________________________________ _______________ Purpose: Salicylic acid is converted to the liquid ethyl salicylate by addition of ethanol. Yields of salicylic acid (week 1) and ethyl salicylate will be found‚ as well as the overall yield of the 2-step conversion of acetyl salicylic acid to ethyl salicylate. Introduction: Esters are formed from the reaction of acids and alcohols: O O
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Mary Eunice Agapito‚ Denmarc R. Aranas*‚ Limuel Joseph V. Bacani‚ and Steven Arthur Baluyot Analysis of Hydrocarbons Department of Biology‚ University of Santo Tomas‚ Manila‚ Philippines Abstract In this experiment we performed parallel chemical test method to identify an unknown. The reflux setup was used to prevent evaporation in mixing the reactants in an inert solvent with its boiling point. Another highlight of this experiment is the liquid-liquid extraction wherein a solution containing
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Week 5 – Final Lab Report Paper SCI207 Dependence of Man on the Environment‚ Marc Hnytka July 8‚ 2013 Week 5 Final Paper Abstract My report was based on the how ground water may be affected by myriad containments present in our experiment and in our everyday . Surprisingly when vinegar was filtered through dirt it came out fairly clean. This surprised me because I would never believed that vinegar had such a profound effect on water considering its oily nature. I was
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laboratory session. Please refer to the Laboratory Techniques TECH 1 to 7 and familiarize yourself with the content. For example during this lab you will be doing extraction and TECH 6 describes the theory behind it and how to handle separatory funnel. using a drying agent and in TECH 6-5 you will read about the use of drying agents doing a distillation and the procedure can be found in TECH 5-2 and the apparatus set up in TECH 5-4 carrying out gravity filtration using fluted filter paper and TECH
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your check cells. Materials Obtain the materials needed as you perform the procedures/lab: • Sports drink (Gatorade‚ Powerade‚ Propel‚ etc.) • Graduated cylinder (small) • Lysis Solution (5 mL) • Plastic test tube w/cap • Test tube rack • Small cup • Funnel • 95% Ethanol (Refrigerated Ethyl alcohol)
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