Synthesis of trans-9-(2-Phenylethenyl)anthracene Introduction The purpose of this experiment was to convert carboxyl compounds into alkenes. While this reaction yields both the E and Z isomers‚ it is preferred over other reactions due to the lack of uncertainty of where the double bond is positioned. Also the stability of an ylide determines which isomer is the major product. 1 Experimental: Compounds Benzyltriphenylphosphonium chloride 9-Anthraldehyde 50% Aqueous NaOH DCM Product Formula weight
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Production of Biodiesel by Enzymatic Transesterification: using Waste Cooking Oil as feedstock and Candida Antarctica Lipase B as Biocatalyst. CHAPTER 1 INTRODUCTON The high cost of bio-diesel‚ compared to petroleum-based diesel‚ is a major barrier to its commercialization. It has been reported that 60-90% of bio-diesel cost arises from the cost of the feedstock oil (C.C. Lai et al.‚ 2005). Studies showed the potential of waste-cooking oil (WCO) as a material for biodiesel production
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Chapter 1 MULTIPLE CHOICE QUESTIONS Topic: Atomic Orbitals 1. A) B) C) D) E) In quantum mechanics a node (nodal surface or plane) is: a place where Ψ is negative. a place where Ψ is positive. a place where Ψ = 0. a place where Ψ2 is large. a place where Ψ2 is negative. Ans: C Topic: Atomic Orbitals‚ Molecular Orbitals 2. When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule‚ how many molecular orbitals are formed? A) 1 B) 2 C) 3 D) 4 E) 5 Ans:
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CHEM 2123 and 2125 – Organic Chemistry Lab I and II GUIDELINES FOR WRITING LAB REPORTS INTRODUCTION Writing reports in organic chemistry lab may differ from the way it’s done in general chemistry. One goal of this course is to introduce you to the record keeping methods used in research labs. Such methods are designed to organize experimental data in a format similar to that required for publication in major scientific journals. Here are some important considerations that apply in research settings
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Experiment 2: Intermolecular Forces Performed: 9/12/2011 Submitted: 9/20/2011 Chemistry 1046L PART I: Purpose: The purpose of partI in this experiment is to identify a variety of unknown substances’ properties using observations of the temperature changes that occur during evaporation. We know that substances with weaker intermolecular forces‚ such as London dispersion‚ will have a faster vaporization rate and thus a higher temperature difference compared to
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According to my research‚ Sodium Borate is normally slightly irritating to skin and eyes. When chronic exposure occurs‚ it produce eye irritation‚ cough‚ and skin rash. The hairspray I use each morning includes Aminomethyl Propanol (C4H11NO). At higher concentrations‚ Aminomethyl Propanol is considered
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to alkenes. This caused an electrophilic halogenation reaction. If the bromine reacted with the alkene the bromine would discolor from orange and turn clear. Experiment Part A) Solubility of Alkanes: 1 mL of nine solvents (water‚ methanol‚ n-butanol‚ ethylene‚ glycol‚ acetone‚ hexane‚ toluene‚ ethyl acetate‚ and dichloromethane.) was added to nine sample vials. Each vial then had 0.5 mL of the alkane decalin added to each one. The mixtures were stirred to determine if the materials dissolved
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(3) amino acids; (4) enzymes; (5) organic solvents; and (6) synthetic fuels. Some Microbial Species Used for Producing Commercial Products. Industrial Chemicals Saccharomyces cerevisisae Ethanol (from Kluyveromyces fragilis glucose) Clostridium Ethanol (from acetobutylicum lactose) Asergillus niger Acetone and Butanol Citric acid Amino Acids and Flavor-enhancing Nucleotides Corynebacterium L-Lysine glutamicum 5’- inosinic acid and Corynebacterium 5’ – guanylic acid glutamicum MSG Corynebacterium gluatamicum
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Experiment no. 1: PHYTOCHEMICAL SCREENING INTRODUCTION Phytochemicals are define as the chemical compounds found or produced by the plants. The term is also define as the chemicals from the plant that may affect health [1]. This compounds are non-essential compounds which means that they are not required by the human body for sustaining life. There are more than thousand known phytochemicals. Some of the well-known phytochemicals are lycopene in tomatoes‚ isoflavones in soy and flavanoids in
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LONG REPORT FORMAT A typical lab report should include the following sections: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Title Page Table of Contents List of Figures Abstract Introduction Apparatus Procedure Safety Results Recommendations and Conclusion Appendix References Follow the detailed instructions in the CHE writing guide. Make sure to include page numbers. 1. Title Page Follow the sample on page 15 of this document. Although counted in the pagination‚ this page is not numbered. (A
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