Date of Experiment: September 10th‚ 2013 Organic Chemistry II – CHLB330 Name: Symone E. MoxeyLab Partner: Lynden Cooper Synthesis of Aspirin (Acetylsalicylic Acid) Abstract:- Aspirin (acetylsalicylic acid) is produced experimentally in the lab. The resulting percentage yield is 65.5%. The purity of the obtained product is tested using the melting point and Ferric Chloride Test (FCT). The aspirin was massed‚ and the melting point was determined. Based on the data collected‚ there was a total
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MODEL QUESTION PAPER 2 PUC II Model Question Paper-2 PUC-II CHEMISTRY Time: 3 hr-15 min. Batch-02 Max Marks: 70 Instructions: i) ii) The question paper has four parts‚ A‚ B‚ C and D. All parts are compulsory Part-A Carries 10 marks Part-B Carries 10 marks Part-C Carries 15 marks Part-D Carries 35 marks iii) Write balanced equations and draw diagrams wherever required (Use log tables and the simple commercial calculator if necessary (use of scientific calculator is not allowed) Part-A I. Answer
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CHEMISTRY OF NATURAL PRODUCTS Terpenoids Sameena Bano Department of Chemistry Faculty of Science Jamia Hamdard New Delhi-110062 (24.09.2007) CONTENTS Introduction Classification of Terpenoids Isolation of mono and sesquiterpenoids General properties of Terpenoids General methods of structure elucidation Terpenoids Citral Menthol Camphor Eugenol Keywords Terpenes‚ isoprene‚ citral‚ menthol‚ camphor and eugenol 1 Introduction There are many different classes of naturally occurring
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31) QUALITY OF DRIED FOODS AND DETERIORATIVE REACTIONS DURING DRYING Consumer demand has increased for processed products that keep more of their original characteristics. In industrial terms‚ this requires the development of operations that minimize the adverse effects of processing. The effect of food processing on finished product quality ultimately determines the usefulness and commercial viability of that unit process operation. In the particular case of food drying this indicates that loss
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INFRARED SPECTROSCOPY: FUNDAMENTALS AND APPLICATIONS Barbara H. Stuart University of Technology‚ Sydney‚ Australia 72 Infrared Spectroscopy: Fundamentals and Applications hydrocarbons appear in the 3000–2800 cm−1 range and the C–H stretching bands of methyl groups and methylene groups are readily differentiated. For methyl groups‚ asymmetric C–H stretching occurs at 2870 cm−1 ‚ while symmetric C–H stretching occurs at 2960 cm−1 . By comparison‚ methylene groups show asymmetric stretching at 2930
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US 20110313189Al (19) United States (12) Patent Application Publication (10) Pub. No.: US 2011/0313189 A1 Varotto et al. (54) (43) Pub. Date: 1.4-FULLERENE ADDENDS IN PHOTOVOLTAIC CELLS (76) Inventors: (51) Dec. 22‚ 2011 Publication Classi?cation Int- Cl C07C 69/616 (2006.01) Appl. No.: (22) Filed: C07C 25/22 C07C 211/61 (200601) (2006.01) Barbara‚ CA (US); Jang Jo‚ Goleta‚ CA (U S) (21) Allesandro Varotto‚ Santa Barbara‚ CA (US); Fred Wudl‚ Santa
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Sept 27‚ 2010 Chapter 4 * With four valence electrons‚ carbon can form four covalent bonds with a variety of atoms * This tetra valence makes large‚ complex molecules possible * Fundamental groups: Alkanes and Alkenes * The electron configuration of carbon gives it covalent compatibility with many different elements * The valences of carbon and its most frequent partners (hydrogen‚ oxygen‚ and nitrogen) are the “building code” that governs the architecture of living
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to be higher on Mg-Al LDH than on MgO. Thi anamalous behaviour is explained by considering the acid- base cooperation – the basic sites facilitating the carbanion formationfrom acetaldehyde and the acid sites increasing the electrophilicity of the carbonyl carbon. Such a coopertive behaviour is further established by the fact theat the Mg-Al LDH calcined at 573 K show higher activity as compared to the 673 K calcined sample. The sample calcined at 573 K has a shigher surface Al content as compared
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Search for Extraterrestrial Life Introduction Mankind has always wondered‚ "Are we alone in the Universe? Isn’t there life out there somewhere?" With an estimate around 300 billion stars in the Milky Way galaxy alone‚ many with their own satellites‚ the possibilities seem likely that some form of life should exist somewhere in the Universe. This search for life begins with a definition of life itself‚ followed by possible candidates both within and outside our solar system‚ and also includes
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carbon and hydrogen Isomers Structural Have different covalent arrangements of the atoms Geometrical Same covalent arrangement but different spatial arrangements Enantiomers Mirror images of each other Functional Groups Hydroxyl OH Carbonyl C=O Carboxyl OH-C=O Amino NH2 Sulfhydryl SH Phosphate O3-P=O Methyl CH3 Macromolecules Needed in large quantities Polymers Carbohydrates Lipids Proteins Nucleic Acids Three of the four molecules are polymers Carbohydrates
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