Organic Chemistry Experiment - Hydrocarbons Thursday‚ April 12‚ 2007 1:34 PM Purpose: To Identify an unknown Hydrocarbon Procedure: Procedure listed in handout "Organic Chemistry Experiment -- Hydrocarbons" Hazards: Open flame and hydrocarbons are flammable. Equations: 1. . 3. . 4. . 5. . Unknown #: 1B s-6 Hyd-3 (colorless liquid) Data/Observations: Test Bromine addition Alkane Mixture of hexane and dichloromethane was originally clear liquid. After adding 3 drops red color Br2/CH2Cl
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DIFFERENT REACTION WILL YIELDS TO A CONCLUSION OF WHAT IS/ARE THE FACTOR/S OF ELECTROPHILIC SUBSTITUTION ON AN ORGANIC COMPOUND – AROMATIC COMPOUNDS. There are three experiments in this chapter of the laboratory. First is the substitution by bromination. Second is the solvent effect which is dealing in the nature of the solvent. And third is the temperature test. Having this division in the experiment one‚ we can now conclude that substituent in substitution‚ the nature of the solvent polar or
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The percent yield of meso-1‚2-dibromo-1‚2-diphenylethane was calculated to be 66.36% and with a melting point of 235.1°C. Therefore‚ it can be concluded that this experiment was successfully conducted as the percent yield obtained is only 33.64% off from the equilibrium point‚ and because the melting point met the literature value. The percent yield for the product was less than 100%‚ indicating that were experimental errors‚ such as an undesirable side reaction‚ or more likely‚ an incomplete reaction
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Experiment 1: Bromination of Acetanilide1 Precautions: Ethanol is flammable Sodium hypochlorite is an oxidizing agent and releases toxic fumes (handle in fume hood) Acetic acid is corrosive‚ harmful if inhaled‚ flammable and can cause burns (handle in fume hood) Gloves are recommended to avoid chemical contact with skin Reaction Scheme: Conversion of acetanilide to p-bromoacetanilide Procedure: To a 125 mL Erlenmeyer flask containing a mixture of 95% ethanol (6 mL) and acetic acid (5 mL)‚ dissolve
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Properties and Reactions of Hydrocarbons Abstract Introduction Hydrocarbons are organic materials that contain only carbon and hydrogen atoms‚ these molecules can be saturated or unsaturated and acyclic‚ cyclic‚ or aromatic. In this experiment we used a variety of methods to examine the physical and chemical properties of hydrocarbons. The first experiment we tested a variety of solvents to see if they dissolved our alkane (Decalin). One would expect that non-polar solvents will dissolve
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Preparation and Characterization of Alkene Balacanao‚ Gladys A.1‚ Miranda‚ MarilynI2 1 Student (s)‚ Subject/Section‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapua Institute of Technology; 2 Professor‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapua Institute of Technology [pic] ABSTRACT The purpose of this experiment is to prepare cyclohexene form cyclohexanol‚ and know the properties of alkene. The first part of this experiment is preparation of cyclohexene
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Electrophilic Aromatic Substitution: Bromination of Aromatic Compounds Introduction: The experiment focuses on finding out what kind of activating effects that four different substituents will have on an aromatic benzene ring. The substituents being tested are aniline‚ anisole‚ acetamide (acetanilide)‚ and phenol. All four of these groups are either para or ortho activating. Bromination is the reaction that will be carried out. The melting point ranges of the final products will be taken in order
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DCITATION: http://www.epa.gov/dfe/pubs/laundry/techfact/keychar.htm Surfactants * Positive Environmental Characteristic: Biodegrade readily to compounds with low toxicity. Example: Straight carbon chain compounds like linear alcohol ethoxylates or betaine esters. * Key Characteristics of Concern: Toxicity to aquatic organisms‚ like fish (vertebrates)‚ daphnids (invertebrates) and algae; persistence in the environment; toxicity of biodegradation byproducts. * Example: Alkylphenol ethoxylates--biodegrade
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Procedure: 3 drops of phenol soln in test tube + 1 drop FeCl3 soln Aliphatic and Aromatic Hydrocarbons/ Alkenes Bromination in Light (Free Radical Bromination) (Reacts with alkanes) Reagent: Br2 in H2O Observation: decolorization‚ brown ( colorless Procedure: 2 drops of test compound in test tube+ 1 drop 0.05 M Br2 in H2O‚ shake well‚ record observations Bromination in Dark (Electrophilic Addition Halogenation) (Reacts with alkenes) Reagent: Br2 in H2O Observation: decolorization
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x100% AE=340.06 g/mol/(180.25g/mol+319.82)x100% AE=68% 5. RME=isolated mass/ reactants mass RME=0.2125 g/ (0.25 +0.5 g) RME=0.28x100=28 6.E factor=mass of waste produced/mass of desired product isolated E factor=1.8 g/0.2125 g E factor=8.47 7.E stilbene= (0.58$/g)x(0.25 g)=$0.15 pyridium tribromide=(0.76$/g)x(0.5 g)=$0.38 ETOH=(8.56$/L)x0.005 L)=$0.043 MEOH=2.30$/L)x(0.001L)=$0.0023 Total cost/gram= $0.58 The reaction is cost effective because it is $2.24 cheaper. 8. AE=160.01 g/mol/(180.25g/mol+319
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