Extraction Report For experience 4c we were supposed to determine which one is the organic layer in three different tubes that has two layers. To determine which is aqueous (water) or organic‚ I used the technique of adding droplets of water to each tube. If the layer is water‚ then the drops of added water will dissolve in the aqueous layer and increase it’s volume. If the added water form droplets or a new layer‚ then it is the organic layer. Tube 1 (water and n-butyl chloride)‚ after adding
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Results and Discussion – Expt. 3 (Crystallization) Name: Parts A and B: 1. Please comment on the relative purity of your recrystallized salicylic acid (Hint: You should use your empirical data to support your claim). -The Salicylic acid that I obtained had a melting point range around 157-158 degrees Celsius for Part A. For Part B the melting point range was 156-157.5 degree Celsius. Part B‚ I would say the sample is less pure because of the notion that impurities lower the melting point
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while Succinimide looked like crystals. The two mixed melting point range trials confirmed this. Unknown number 18 is Benzoic Acid. A possible alternative would be Succinimide‚ because of the close melting points. Another possible alternative is Fluorene‚ which melts at slightly lower temperatures than my unknown does. Benzoic Acid is C7H6O2. Its structure is: My percent recovery was 28.26%. During the dissolving of my unknown‚ there was still undissolved solid. This could have led to a smaller
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Lab 3: Solubility of Organic Compounds Objectives: Understanding the relative solubility of organic compounds in various solvents. Exploration of the effect of polar groups on a nonpolar hydrocarbon skeleton. Introduction: The solubility of a solute (a dissolved substance) in a solvent (the dissolving medium) is the most important chemical principle underlying three major techniques you will study in the organic chemistry laboratory: crystallization‚ extraction‚ and chromatography.
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heating it. • Always wear department approved eye goggles at all times. • Long pants and closed toe shoes are required. Table of Reagents Reagent Mol. Wt. (g/mol) Bp ( ͦ C) Mp ( ͦ C) Density (g/ml) Acetanilide 135.17 304 113-115 1.219 Fluorene
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PAHs (Acenaphthene‚ Acenaphthylene‚ Anthracene‚ Benz[a]anthracene‚ Benzo[b]fluoranthene‚ Benzo[k]fluoranthene‚ Benzo[ghi]perylene‚ Benzo[a]pyrene‚ Chrysene‚ Dibenz[a‚h]anthracene‚ Dibenzo[a‚e]pyrene‚ 7‚12-Dimethylbenz[a]anthracene‚ Fluoranthene‚ Fluorene‚ Indeno[1‚2‚3-cd]pyrene‚ 3-Methylcholanthrene‚ 2-Methylnaphthalene‚ Naphthalene‚ Perylene‚ Phenanthrene‚ Pyrene)‚ 11 benzene derivatives (Acetophenone‚ Aniline‚ Benzoic acid‚ Benzyl alcohol‚ 2‚4-Dimethylphenol‚ Hydroquinone‚ 2-Methylphenol‚ 3-Methylphenol
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BIOREMEDIATION Bioremediation is such type of technology in which microorganism‚ fungi‚ bacteria‚ plant and there is use to convert polluted condition in to original condition. Through bioremediation process microorganism act on pollutant or on chemicals due to which pollution occur and help that thing to come back in its original condition. Bioremediation is an option to offers the possibility to destroy or renders various harmful thing through natural biological activity.
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Radical Cations•+: Generation‚ Reactivity‚ Stability R A R A MacMillan Group Meeting 4-27-11 by Anthony Casarez Three Main Modes to Generate Radical Cations Chemical oxidation D A D A Photoinduced electron transfer (PET) h! 1) D A D A* D A 2) D A h! D* A D A Electrochemical oxidation (anodic oxidation) D Anode D Chemical Oxidation Stoichiometric oxidant: SET O N Bn H N Me O N Me t-Bu
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Structural Effects on Stability and Reactivity. Organic Chemstry Laboratory Structural Effects on Stability and Reactivity Introduction The concepts of stability and reactivity are fundamental to understanding chemistry. In this chapter we consider first the thermodynamic definition of chemical stability. We then consider chemical kinetics (Section 3.2) and how it can provide information about reactivity. We also explore how structure influences stability and reactivity. We want to learn how
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C H A P T E R 5 Basic Concepts from Organic Chemistry 5.1 | INTRODUCTION The fundamental information that environmental engineers and scientists need concerning organic chemistry differs considerably from that which the organic chemist requires. This difference is due to the fact that chemists are concerned principally with the synthesis of compounds‚ whereas environmental engineers and scientists are concerned‚ in the main‚ with how the organic compounds in liquid‚ solid‚ and gaseous wastes
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