Benzene Essays & Research Papers

Best Benzene Essays

  • Benzene - 1433 Words
     Benzene is a special case of conjugation that leads to an especially stable bonding arrangement. The benzene ring consists of six sp2 hybridized carbon atoms in a regular hexagon. Each carbon forms two σ-bonds with adjacent carbons, and a third σ-bond with a hydrogen atom. The 2p orbital on each atom is available for π-bonding. Interaction between the p orbitals on the six carbon atoms forms a conjugated system of π-electrons. Molecules with this bonding arrangement are...
    1,433 Words | 5 Pages
  • Benzene - 8571 Words
    Benzene 1 Benzene Benzene Identifiers [1] CAS number 71-43-2 PubChem 241 ChemSpider 236 UNII J64922108F EC number 200-753-7 KEGG C01407 ChEBI CHEBI:16716 ChEMBL CHEMBL277500 RTECS number CY1400000 Jmol-3D images Image 1 [2] [3] [4] [5] [6] [7] [8] [9] Properties Molecular formula CH Molar mass 78.11 g mol−1 Appearance Colorless liquid Odor aromatic,...
    8,571 Words | 37 Pages
  • Recovery of Benzene - 2115 Words
    PROJECT 1: Recovery and Purification of benzene from Naphtha and C5+ Catalytic Reforming gasoline streams using extractive distillation. Prepared for: CHE4049F, Process Synthesis and Equipment Design 2013 Prepared by: HLTSIB003 02 March 2013 Table of Contents 1. PROCESS SUMARRY 1 2. PROCESS SYNTHESIS 2 2.1 Eliminate Differences in Molecular Type 2 2.2 Distribute Chemicals by Matching Sources and Sinks 3 2.3 Eliminate Differences in Composition 4 2.4 Eliminate...
    2,115 Words | 8 Pages
  • Atom and Benzene - 536 Words
    Benzene Benzene, C(6)H(6), is a clear, colorless, flammable liquid that is insoluble in water.Its boiling point is 80 degrees C (176 degrees F). In the past benzene was obtained from the distillation of coal in the absence of air. Today most benzene is made syntheticallyfrom petroleum products. The benzene is a closed ring of six atoms connected by bonds that resonatebetween single and double bonds; each carbon is also bound to a single atom. Benzene isinsoluble in water but mixes...
    536 Words | 2 Pages
  • All Benzene Essays

  • Benzene and Activating Group - 852 Words
    Brian Ho EAS Lab Report Section: 40788 Chem 51LC/ Tuesdays 1-5pm TA: Sam Mann Purpose: The goal of this experiment was to explore the degree of activation of the activating groups in aniline, acetamide, phenol, and anisole. A bromination reaction was done with one of the four aromatic compounds and the product was analyzed using melting point calculations. Theory: In general, electrophilic aromatic substitution occurred when the alkene in the benzene ring...
    852 Words | 3 Pages
  • Benzene and Organic Chemical Compound
    BENZENE OUTLINE I. What is the source of Benzene? Benzene is an organic chemical compound, which is a colorless liquid with a sweet odor. It evaporates into the air very quickly and dissolves slightly in water. It is very flammable and is formed from both natural processes and human activities. It was discovered in 1825 by English scientist Michael Faraday. Natural sources of benzene include volcanoes and forest fires. It is also a natural part of crude oil, gasoline and cigarette...
    435 Words | 2 Pages
  • Global Linear Alkyl Benzene (LAB) Market Analysis By Application (Heavy Duty Laundry Liquids) by Grand View Research, Inc
    The global market for linear alkyl benzene (LAB) is expected to reach USD 9.27 billion by 2020, according to a new study by Grand View Research, Inc. Growing demand for household cleaning & industrial cleaning particularly in emerging market of Asia Pacific is expected to remain a key driving factor for the market. However, volatile raw material price is expected to remain a key challenge for market participants. Linear alkylbenzene sulphonate (LAS) emerged as the leading application segment...
    577 Words | 3 Pages
  • Nitration of Methyl Benzoate - 910 Words
    Nitration of Methyl Benzoate Abstract: This procedure demonstrates the nitration of methyl benzoate to prepare methyl m-nitrobenzoate. Methyl benzoate was treated with concentrated Nitric and Sulfuric acid to yield methyl m-nitrobenzoate. The product was then isolated and recrystallized using methanol. This reaction is an example of an electrophilic aromatic substitution reaction, in which the nitro group replaces a proton of the aromatic ring. Following recrystallization, melting point and...
    910 Words | 4 Pages
  • The Effect of Gasoline Fumes on Plants
    The Effect of Gasoline Fumes on plants Introduction: This science fair project was conducted to study the effect of gasoline fumes on plants. The testing was done by placing plants beside a gasoline-filled container for different periods of time and temperatures. Hypothesis: Gasoline fumes cause plants to die - the longer the exposure to the fumes, the quicker the plants will die. Our second hypothesis is that exposure to fumes, at higher environmental temperatures, will result in...
    789 Words | 3 Pages
  • Analysis of Hydrocarbons - 1051 Words
    Analysis of Hydrocarbons Jessa Grace B. Castillo* and Stephanie Chua Department of Chemistry, University of Santo Tomas, Manila, Philippines ______________________________________________ Hydrocarbons are organic compounds containing only hydrogen and carbons and further divided in major types. Hydrocarbons react differently in reagents. The basis of determining an unknown hydrocarbon is due to the differences in reactions of hydrocarbons. An unknown compound is determined using tests....
    1,051 Words | 5 Pages
  • Vegetative reproduction - 1205 Words
    Vegetative reproduction (vegetative propagation, vegetative multiplication, vegetative cloning) is a form of asexual reproduction in plants. It is a process by which new individuals arise without production of seeds or spores. It can occur naturally or be induced by horticulturists. Although most plants normally reproduce sexually, many have the ability for vegetative propagation, or can be vegetatively propagated if small pieces are subjected to chemical (hormonal) treatments. This is because...
    1,205 Words | 5 Pages
  • Alkynes, Alkene, Alkanes, Aromatic
    Alkane, Alkene, Alkyne & Aromatic Learning Objectives 1. 2. 3. Determine the IUPAC name, common name and structure of an alkanes, alkenes and cycloalkanes. Identify the physical properties of alkanes. Describe briefly natural sources and importance of alkanes Describe reactions of alkanes Propose a mechanism on free radicals substitution 4. 5. 6. Describe the preparation and reactions of alkenes. 7. Propose mechanism on preparation; dehydration of alcohol 8. Define...
    1,698 Words | 13 Pages
  • Price Stability on Oil and Petrochemicals
    Petrochemicals prices climb 2% in December on tight supplies LONDON, January 9, 2013 - Prices in the $3-trillion-plus global petrochemicals market climbed 2% to $1,350 per metric ton (/mt) in December, according to the just-released monthly average of the Platts Global Petrochemical Index (PGPI), a benchmark basket of seven widely used petrochemicals. This follows a drop of 2% in November. But on a year-over-year basis, petrochemical prices were up 16% from the December 2011 average price...
    506 Words | 2 Pages
  • CHE Problems - 16161 Words
    CHE656 Computer Applications for Chemical Engineering Practice Process Simulation with ASPEN PLUS Exercise Problems Version 2012 Prepared by Dr. Hong-ming Ku King Mongkut’s University of Technology Thonburi Chemical Engineering Department Chemical Engineering Practice School © May 2004-2012 – Use with Permission of the Author Only 1 Section 1 Elementary Modules, Mass Balances, and Degree of Freedom Analysis 2 1. Mass Balances and Constraints with Elementary...
    16,161 Words | 125 Pages
  • experiment 2 - 817 Words
    Experiment 2 : 4-Bromobenzophenone by the Friedel-Craft reaction. Objectives To introduce an acyl group into an aromatic ring by accomplishing an electrophilic substitution To prepare 4-Bromobenzophenone by Friedel Crafts reaction Introduction Friedel-Crafts reaction is a reaction to attach a substituents to an aromatic ring. It involves an electrophilic substitution. Friedel-Crafts acylation is the acylation of aromatic rings with an acyl chloride using a strong Lewis acid catalyst....
    817 Words | 4 Pages
  • Nitration of Bromobenzene - 380 Words
    This experiment focuses on the concept of electrophilic aromatic substitution, which is a type of benzene reaction. This reaction consists usually of benzene and an electrophile. The role of the nucleophile is played by the double bond on the benzene ring. IT will react will the electrophile and this reaction will form a carbon cation intermediate. With additional reactions with a base, the electrophile fundamentally replaces the hydrogen of the benzene. Benzene is classified as one of the...
    380 Words | 1 Page
  • Friedel-Crafts Reactions - 315 Words
    Compounds containing aromatic groups are widespread in nature, and for this reason chemists who aim to synthesize naturally occurring compounds in the laboratory often need to introduce substituents to aromatic rings. In the organic synthesis laboratory, electrophilic aromatic substitutions which result in the formation of new carbon-carbon bonds are called ‘Friedel-Crafts’ alkylations and acylations, named for Charles Friedel of France and James Crafts of the United States, who together...
    315 Words | 2 Pages
  • Past Paper - 917 Words
    NORTHUMBRIA UNIVERSITY Department of Applied Sciences CS0507 CHROMATOGRAPHY (Module Level 5) Date: Time allowed: January 2014 1 hour 30 mins +10 minutes reading time Instructions: The examination paper contains TWO compulsory Sections Candidates are to attempt ALL questions in BOTH Sections A and B. The number of marks for each part question is given in brackets. Non-programmable scientific calculators are permitted. Graph paper is provided. A Chemistry...
    917 Words | 5 Pages
  • Preparation of Methyl M-Nitrobenzoate
    Preparation of methyl m-nitrobenzoate by nitration using methyl benzoate, nitric acid, and sulfuric acid Aileen Quintana TA: Sijie Tues/Thurs 11:50 42067 Introduction: The purpose of this lab was to explore the concepts of electrophilic aromatic substitution, specifically nitration by synthesizing methyl m-nitrobenzoate using methyl benzoate, nitric acid and sulfuric acid. This nitration is a type of electrophilic aromatic substitution. A...
    870 Words | 4 Pages
  • Carcinogenic Hydrocarbons - 519 Words
    Are Aromatic Hydrocarbons Carcinogenic Aromatic hydrocarbons or arenes are hydrocarbons characterized by alternating double and single bonds between carbons. Benzene is the most common aromatic hydrocarbon, but there are some non-benzene based compounds called heteroarenes, where a carbon is replaced by an oxygen, nitrogen, or sulfur, that are also aromatic compounds. Aromatic hydrocarbons exist in our daily lives regardless if we recognize them or not. Aromatic hydrocarbons are ingested or...
    519 Words | 2 Pages
  • The Organic Chemistry of the Transition Elements. Part I. Tricarbonylchromium Derivatives of Aromatic Compounds. by B. Nichollasn D M. C. Whiting.
    [19593 Organic Chemistry of the Tramition Elements. Part r. View Online 551 Downloaded by University of Washington on 01 February 2011 Published on 01 January 1959 on http://pubs.rsc.org | doi:10.1039/JR9590000551 113. The Organic Chemistry of the Transition Elements. Part I. Tricarbonylchromium Derivatives of Aromatic Compounds. By B. NICHOLLS M. C. WHITING. and Many aromatic compounds, ArH, displace carbon monoxide from chromium hexacarbonyl with the formation of complexes...
    4,214 Words | 14 Pages
  • Nitration of methyl benzoate - 629 Words
    Introduction Aromatic compounds, which are planar cyclic rings with (4n+2)π electrons, will not undergo simple addition reactions like those of alkyl substances. However, in the presence of an electrophile, aromatic compounds will undergo electrophilic aromatic substitution. In this type of reaction, two π electrons from the aromatic ring serve for the ring to act as a nucleophile and attack an electrophile. For nitration, this nucleophile is NO2+, which is produced by reacting nitric and...
    629 Words | 4 Pages
  • ORGANIC CHEMISTRY - 1838 Words
    CHEMISTRY OF HYDROCARBON EXPERIMENT 16 OBJECTIVE The objective of this experiment is to distinguish the difference between various types of hydrocarbons by performing simple tests and reactions involving hydrocarbons. EQUIPMENT AND CHEMICALS Pentene Toluene Heptane Potassium permanganate (1% KMnO4) Aluminum chloride (anhydrous AlCl3) Chloroform (CHCl3) Ligroin Br2 in CCl4 (5%) Stopper pH paper Small test tubes and rack Graduated cylinder (10 ml) Evaporating dish...
    1,838 Words | 18 Pages
  • Dangerous Fumes Report - 431 Words
    DANGEROUS FUMES Science Fair! Classes: * Chemistry * Biology * Physics Group members: * Claudia Castillo * Karla Murillo * Laurel Vindel 10-B INDEX Introduction…………………………………...…..pg.3 Problem & Research………………….…….…..pg.4 Hypothesis………………………………….…….…pg.6 Materials…………………………………….……….pg.7 Procedure…………………………………….……..pg.8 Experiment………………………………………….pg.9 Analysis………………………………………………pg.10...
    431 Words | 3 Pages
  • Alkenes and Alkynes - 2136 Words
    Unsaturated Hydrocarbons Unsaturated hydrocarbons  Have fewer hydrogen atoms attached to the carbon chain than alkanes.  Are alkenes with double bonds.  Are alkynes with triple bonds. 1 Structure of Alkenes  Alkenes (and alkynes) are unsaturated hydrocarbons  Alkenes have one or more double bonds  The two bonds in a double bond are different: - one bond is a sigma () bond; these are cylindrical in shape and are very strong - the other is a pi (π) bond; these involve sideways overlap of...
    2,136 Words | 32 Pages
  • Friedel Crafts Alkylation - 1378 Words
    Carly Bolyard Chem 2020 Experiment Performed: 9/17/2014-9/24/2014 Lab Partner: Erika Breeden Synthesis of 1,4-Di-t-Buytl-2,5-Dimethoxybenzene via Friedel-Crafts Alkylation Title: Synthesis of 1,4-Di-t-buytl-2,5-dimethoxybenzene via Friedel-Crafts Alkylation Introduction: Friedel-Crafts alkylation of benzene (and substituted benzenes) involves substituting a hydrogen atom on a benzene ring with an alkyl group. In the reaction a new alkyl group becomes bonded to a carbon atom...
    1,378 Words | 7 Pages
  • Hydrocarbons - 2037 Words
    Analysis of Hydrocarbons Jovellanos, Bien Jindrich Johannes; Lacson, Danise Angelica; *Lagula, Nina Francesca; Lañez, Kristine Department of Psychology College of Science University of Santo Tomas España Manila 1015 Abstract A hydrocarbon is strictly composed of carbon and hydrogen atoms only. Five hydrocarbons were used namely hexane, cyclohexene, toluene, naphthalene (in hexane), and the unknown (which will be known through parallel chemical tests). Three tests, nitration test,...
    2,037 Words | 8 Pages
  • Diels Alder Lab Report
    The Diels-Alder Reaction Submitted by: Joe Student Partner: Jill Student Date: February 8, 2005 TA: Super TA Reaction +OOOxylene140 oCOOO Data Table Reagents MW Grams used Lit. Mp Anthracene 178.23 g/mol 1.023 g 216-218ºC Maleic anhydride 98.06 g/mol 0.497 g 54-56ºC Products MW Grams obtained Lit. Mp Observed Mp Crude product 276.29 g/mol 1.362 g 261-262ºC 260.2-261.3ºC Recryst. Product 276.29 g/mol 1.283 g 261-262ºC 261.3-261.9ºC Results and Discussion Discuss...
    536 Words | 3 Pages
  • Chemistry of Arenes - 1460 Words
    Arenes The aromatic hydrocarbons also have the name arenes. They contain in their molecule one or more cycles made up from 6 carbon atoms. When the molecule is formed out of a single cycle, the hydrocarbons are mono nucleuses; when the molecule contains more than one cycle, the hydrocarbons are poly nucleuses. The simplest aromatic hydrocarbon, benzene, is compound out of just one such cycle; its formula is C6H6. The representation of benzene through a cycle of 6 carbon atoms with 3 double...
    1,460 Words | 6 Pages
  • Diels Alder - 787 Words
    Abstract For the following experiment, a Diels-Alder reaction between maleic anhydride and anthracene was conducted. Reflux mechanism was used for the reaction to occur. To increase the speed of the reaction, xylene was used because of its high boiling point. After the reaction was complete, 1.08g of the off white product was obtained with a yield of 69.7%. It was not clear if a pure product had been formed because time constraints did not allow us to perform thin layer chromatography....
    787 Words | 3 Pages
  • Nomenclature of Naming Aromatic Hydrocarbons
    Nomenclature of Aromatic Compounds Aromatic Compounds- possess a ring shaped structure Benzene (C6H6)- aka. naphtha - unsaturated cyclic compound - simplest aromatic HC - all C to C bonds are identical; each C has a H atom - substitution reactions occur instead of addition reaction - delocalized pi bonding in benzene imparts stability (aromaticity); responsible for resistance to addition reactions (involve breaking delocalized bonding) Benzene Derivatives- produced when one or more H atoms on...
    590 Words | 2 Pages
  • Comparative Investigation of Organic Compounds
    COMPARATIVE INVESTIGATION OF ORGANIC COMPOUNDS Abstract Organic compunds were examined to a comparative investigation to differentiate the properties of each sample. The physical state at room temperature, odor and color of the sample were noted by simple observation. In terms of solubility in H2O, 5% NaOH solution and 5% HCl solution, the samples were classified as to miscible, slightly immiscible or immiscible for liquid; and very soluble, soluble, partially soluble or insolubse for...
    1,403 Words | 6 Pages
  • Nitration of Methyl Benzoate - 1271 Words
    Nitration of Methyl Benzoate to form Methyl-m-nitrobenzoate via Aromatic Substitution Linh Ngoc Thuy Nguyen Seattle Central Community College Professor: Dr. Esmaeel Naeemi Date: February 21st, 2012 Abstract In this experiment, methyl-m-nitrobenzoate, followed the electrophilic addition of aromatic ring, would be formed from the starting material methyl benzoate and nitric acid, under the catalysis of concentrated sulfuric acid. The reaction between nitric acid and sulfuric acid...
    1,271 Words | 4 Pages
  • Classification Tests for Hydrocarbons - 1424 Words
    Classification Tests for Hydrocarbons Authors: Goldie Ann Tejada, Allain Joseph S. Templo, Kristinlyn Trajano, Kevin Viray, Quennie Yu Group 10, 2F-PH, Faculty of Pharmacy, University of Santo Tomas ABSTRACT The test compounds undergo different physical and chemical tests to differentiate their intrinsic physical properties and chemical properties. Physical state, color, and odor were noted through simple observation. Miscibility of the test compounds were noted through color...
    1,424 Words | 5 Pages
  • Nothing - 316 Words
    1985-2010: Bobbie Jones was a chemical engineer at Natural Shalegas and then a successor at Penn HydraGas. Pg 66 2002-2009: Simpleton was employed as Vice President for Penn HydraGas 2005: Tomley bought Natural ShaleGas and renamed it Penn HydraGas 2009: It is revealed that Mitchel Tomley was encouarging his company to make its operations more productive by using diesel in the drilling operation. pg. 63 2009: Simpleton left Penn HydraGas. June 2010: Bobbie Jones fired from Penn HydraGas....
    316 Words | 1 Page
  • BIOREMEDATION - 1278 Words
     BIOREMEDIATION INTRODUCTION:- The process of bioremediation was reportedly devised by George M Robinson in the 1960 during experimentation with dirty jars and the introduction of microbes this was however not applied until the 1972 clean out of the fuel holding tanks on the RMS queen mary. Science 1972 bioremediation has become greater developed as a means of cleaning up spills of gasoline diesel , heavy metals and other easily degraded petroleum products (National Research Council...
    1,278 Words | 5 Pages
  • Extraction and analysis of two compound
     Extraction and analysis of two compounds from unknown solution C ABSTRACT Liquid C and solid C were both extracted from unknown solution by first using chemically active liquid-liquid extract, followed by vacuum filtration. Liquid C and solid C were then purified with the use of simple distillation and recrystallization respectively. Through the process of recrystallization, the percentage purity of solid C was found to be 6.01%. The melting point range of purified solid C was 117.0 –...
    1,960 Words | 7 Pages
  • Nitration of Methyl Benzoate - 479 Words
    Nitration of Methyl Benzoate Introduction: Nitration is an example of an electrophile aromatic substitution reaction, where nitro (NO2) group is being substituted for a hydrogen on an aromatic compound. This is achieved by the formation of the nitronium ion by protonation of nitric acid from sulfuric acid. The zirconium ion is a strong electrophile and can react with aromatic compound such as Methyl benzoate to form an arenium ion intermediate. The arenium ion is then depronated to...
    479 Words | 4 Pages
  • Esterification of Methyl Benzoate from Benzoic Acid
    Experiment #5: Esterification of Methyl Benzoate from Benzoic Acid October 28, 2010 Abstract: This experiment was conducted to synthesize methyl benzoate from benzoic acid and methanol by using the Fischer esterification method. Methanol (12.5ml) and Benzoic acid (4.9 grams) are heated together in the presence of concentrated sulfuric acid (1.5ml) until equilibrium is achieved. A reflux apparatus is set up for 1 hour to carry out the reaction at the boiling point of the solvent...
    568 Words | 3 Pages
  • Nitration of methyl benzoate Report
    Title: Experiment 28: Nitration of Methyl Benzoate Objective: The students will learn to nitrate methyl benzoate through electrophilic aromatic substitution reaction. They will learn the importance of regiochemistry in chemical reactions. They might experience disubstitution through a high temperature. Reactions: Observation: The crystals started to form when added 2 g of crushed ice. The addition of hot methanol dissociated the crystals. The crystals reappeared when cooled down...
    595 Words | 4 Pages
  • RELATIVE RATES OF ELECTROPHILIC AROMATIC SUBSTITUTION
     RELATIVE RATES OF ELECTROPHILIC AROMATIC SUBSTITUTION Juris Marie G. Garcia Institute of Chemistry, University of the Philippines, Diliman, Quezon City Date Performed: February 27, 2015 Date Submitted: March 13, 2015 Answers to Questions: 1.) Arrangement of Reactivity: (fastest to slowest) - Phenol, Nitrophenol, Acetanilide, Benzene, Chlorobenzene, Aniline - A reaction has occurred if there’s a change in color. The nature of the substituent, whether electron-donating to the ring or...
    367 Words | 2 Pages
  • Determination of Heat of Solution - 1156 Words
    DETERMINATION OF THE HEAT OF SOLUTION BY THE VANT HOFF ISOCHORE METHOD Jan Vincent Arafiles, Merry Joy Arzaga, Anne Louise Ayson, Lovely Jenny Buenaflor Group 2 3A-Biochemistry chem401 laboratory ABSTRACT Thermodynamic values can be determined using the Vant Hoff isochore method. This method entails the use of equilibrium systems to determine the change in enthalpy of the solution, which can b related to the change in internal energy of the solution. The van't Hoff isochore relates...
    1,156 Words | 4 Pages
  • Lab Report - 516 Words
    This form can be used for reporting analyses of volatile organic compounds, semi-volatile, petroleum hydrocarbons, PCBs, pesticides, herbicides, and other organics. Page 1 of 3: Analytical Result A. Header Information 1. After "Project No:", enter the client's project number (from cover page 1). This number is required on every page of the report. 2. After "METHOD", enter the analytical method used. (e.g., EPA 8260, or EPA method 8021). 3. After "REPORTING UNIT", enter the...
    516 Words | 2 Pages
  • Nitrobenzoate - 485 Words
    Abstract: In this experiment, the methyl nitrobenzoate was prepared from methyl benzoate, concentrated HNO3, and concentrated H2SO4 via an electrophilic aromatic substitution reaction. The HNO3 and H2SO4 were combined to form a nitrating solution, which was mixed with a mixture of methyl benzoate and H2SO4. Percent yield for the final product was calculated followed by recrystallization and melting point was measured. Introduction: Nitration of Methyl Benzoate is one of the...
    485 Words | 2 Pages
  • Preparation of 4-Bromoaniline - 1855 Words
    Preparation of 4-bromoaniline Introduction Aromatic compounds tend to undergo electrophilic aromatic substitutions rather than addition reactions. Substitution of a new group for a hydrogen atom takes place via a resonance-stabilized carbocation. As the benzene ring is quite electron-rich, it almost always behaves as a nucleophile in a reaction which means the substitution on benzene occurs by the addition of an electrophile. Substituted benzenes tend to react at predictable positions. Alkyl...
    1,855 Words | 6 Pages
  • Analysis of Hydrocarbons 1 - 949 Words
    BIOORGANIC CHEMISTRY BioOrganic Chemistry Laboratory – CH 205 (2010-2011) Experiment 3 Analysis of Hydrocarbons Maria Patricia Dizon, Nikko Paolo Ebarvia, Darlene Louise Estrada* and Rizhelle Evan Evaristo Department of Occupational Therapy, College of Rehabilitation Sciences University of Santo Tomas, Espaňa Street, Manila 1008 Date Submitted: February 2, 2011 Abstract: Organic compounds hexane, heptane, cyclohexane, cyclohexene, benzene, and toluene were...
    949 Words | 4 Pages
  • Alkane Alkene Alkyne Aromatic - Additional Questions
    Additional Questions: 1. H H H C C H H C C H C H H C H H Compound A Compound A is an intermediate compound found in a production plant attempting to synthesise n-hexane. a) List three physical properties of alkynes. b) Give the IUPAC name of compound A. [3 marks] [2 marks] c) There are several ways to form the final product from Compound A. An operator has decided to use Pt catalyst to react with Compound A. Write the complete chemical reaction equation. [3 marks] d) The quality...
    404 Words | 2 Pages
  • Isolation of Essential Oils and Chromatography
    Experiment 4 CHROMATOGRAPHY OF PLANT PIGMENTS Separating impure mixtures into pure substances is among the most important and fundamental of skills which must be learned by a chemist. The study of pure substances requires that the chemist learn many different techniques of separation so as to pursue the study of properties of pure substances and their reactions. It was Alexander Tswett, a Russian botanist, who first found that he could extract pigments from plants. This...
    2,168 Words | 9 Pages
  • Esterification and Hydrolysis: Methyl Benzoate by Fisher Esterification
    Esterification and Hydrolysis: Methyl Benzoate by Fisher Esterification Nitration of Methyl Benzoate Jingling Li 2/16/2014 Purpose of the experiment: To understand the mechanisms for Fisher esterification reactions as an equilibrium process and hydrolysis is the reversal reaction of esterification. Nitrate methyl benzoate by an electrophilic aromatic substitution reaction. Summary of procedures: Add sulfuric acid to the mixture of benzoic and methanol, heat up the mixture to 65...
    506 Words | 2 Pages
  • synthesis of asprin - 543 Words
    Nitration of Acetanilide Introduction When organic compounds are nitrated it changes the composition and reaction of the compounds.[4] We could benefit from these changes, nitration of acetanilide produces a product called p- Nirtoanoline. P-Nitroaniline is commonly used as an intermediate in the synthesis of dyes, antioxidants, pharmaceuticals and gasoline. P-Nitroaniline is also used in gum inhibitors, poultry medicines and as a corrosion inhibitor. [2] Nitration is a type of...
    543 Words | 3 Pages
  • Nucleophilic Aromatic Substitution of 2,4-Dinitrochlorobenze
    Experiment #1 Nucleophilic Aromatic Substitution of 2,4-dinitrochlorobenze Name: Anouk Deck-Leger Student I.D: 9380868 Date performed: September 13th, 2010 Due Date: September 20th, 2010 Introduction: The company DNCB produces large amounts of 2,4-dinitrochlorobenzene and they sell this product to treat against warts and severe and chronic hair loss. It can also be used as an alternative treatment for HIV. The supervisor notices an excess amount of m-aminobenzoic acid stored away...
    1,758 Words | 6 Pages
  • Pre Lab-Relative Rates of Electrophilic Aromatic Substitution
    Name: Saj Jo Dan C. Odsey Date Performed: April 26, 2013 Lab-partner: Viktoria R. Beltran RELATIVE RATES OF ELECTROPHILIC AROMATIC SUBSTITUTION I. Objective(s) In this Experiment, the relative reactivities of different substituted benzenes towards bromination will be determined, where bromine is dissolved in acetic acid. Materials and apparatus Test solutions: 0.2 M solutions in ethyl acetate: Benzene, chlorobenzene, phenol, nitrophenol, aniline...
    409 Words | 2 Pages
  • Bromobenzene - 749 Words
    Mona Vaidya April 8, 2014 Professor Diaz Chem 317 Section: 20711 Lab Experiment: Nitration of Bromobenzene Introduction: The chemical reaction of nitration consists of a nitro group being added to or substituted in a molecule. Nitration can basically be carried out by a mixture of concentrated nitric acid and sulfuric acid; this mixture is useful to obtain the active nitronium ion. Electrophilic aromatic substitution is a method used when a functional group is needed to be substituted...
    749 Words | 3 Pages
  • aromatic and aliphatic - 364 Words
    Abstract The aliphatic and aromatic hydrocarbon are can be differentiate by .For example,in the experiment involving aliphatic hydrocarbon which is cyclohexane that undergo the reaction with bromine water in the presence of UV light.This reaction is known as substitution reaction.The cyclohexane that react with bromine under present of UV light will change to slightly brown while the other one has no changeous which is still brown.For baeyer’s test,the alkane which is heptanes will not undergo...
    364 Words | 2 Pages
  • Analysis of Hydrocarbons 2 - 604 Words
    Analysis of Hydrocarbons Myra Gurango, Geneva Guy, Micah Hernandez* and Joyce Lagarde Department of Chemistry, University of Santo Tomas, Manila, Philippines Abstract The organic compounds hexane, toluene, cyclohexene and naphthalene in hexene were subjected to parallel chemical testing to differentiate their intrinsic physical properties in terms of structure and behavior. The physical state and color were noted by simple physical observation. Nitration Testing was conducted for...
    604 Words | 3 Pages
  • Experiment 18-Nitration of Methyl Benzoate
    Title: Nitration of Methyl Benzoate Objective: To prepare methyl-3-nitrobenzene from nitration of methyl benzoate. Results and calculations: Density = 1.094 g/ml = Mass of methyl benzoate = 1.094 g/ml x 2.8 ml = 3.0632 g no. of mol of methyl benzoate = = 0.022499 mol 1 mol of methyl benzoate produced 1 mol of methyl m-nitrobenzene. Therefore, 0.022499 mol of methyl benzoate produced 0.022499 mol of...
    1,068 Words | 4 Pages
  • Notes of Halo Alkanes - 3653 Words
    163 CHAPTER 13 HYDROCARBON  Hydrocarbons are composed of Carbon and hydrogen.  The important fuels like Petrol, kerosene, coal gas, CNG, LPG etc. are all hydrocarbons or their mixture. Sources: Petroleum and natural gas are the major sources of aliphatic hydrocarbon while coal is an important source of aromatic hydrocarbons. The oil trapped inside the rocks is known as petroleum. PETRA – ROCK, OLEUM – OIL. The oil in the petroleum field is covered with a gaseous mixture known as...
    3,653 Words | 24 Pages
  • 2-(2,4-Dinitrobenzyl) Pyridine
    2-(2,4-Dinitrobenzyl) pyridine Peter Defnet and Cody Krepps Department of Chemstry Juniata College Huntingdon, PA September 18, 2012 Abstract: Nitration of 2-benzylpyridine is supposed to yield 2-(2,4-Dinitrobenzyl) pyridine, when electrophilic aromatic substitution is the mechanism. Experiencing many pitfalls, however, has lead to the actual product obtained to contain the expected product, as well as many impurities. This report examines the supposed mechanism for the electrophilic...
    1,745 Words | 6 Pages
  • identification of hydrocarbons - 1533 Words
    IDENTIFICATION OF HYDROCARBONS I. Abstract In this experiment, alkanes and alkenes are tested for their properties. Bromine test is used to determine if alkane, alkene or aromatic compounds are present. Alkanes will not react in this because it is saturated. All carbons are already bonded so no reaction will take place but when placed under the sun, halogenation will happen. Alkenes on the the other hand will react immediately. In potassium permanganate test or Baeyer’s test, alkanes...
    1,533 Words | 7 Pages
  • Perkin Reaction - 1264 Words
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  • properties of hydrocarbon - 1319 Words
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  • Extraction of Organic Solvent - 493 Words
    Extraction is a method used for separating and isolating materials. A compound is pulled from solvent A to solvent B and in this case, both solvents are miscible. These two concepts are not capable of mixing together; when they are mixed together, they form a bilayer. This can be seen when mixing oil and water together. When thinking of extractions, one can picture how coffee gets extracted. The flavors, molecules, caffeine, etc. are extracted from the coffee beans. In this experiment, a...
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