COVENANT UNIVERSITY FACULTY OF SCIENCE AND TECHNOLOGY DEPARTMENT OF CHEMISTRY COURSE TITLE: General Organic Chemistry COURSE CODE: CHM 121 ‚ UNIT: 2.0 . INTRODUCTORY AND IMPORTANCE OF ORGANIC CHEMISTRY Organic chemistry is the study of the compounds of carbon. Carbon compounds are far more numerous than those of other elements because carbon are able to bond together to form a wide range of chains and rings. The subject is named organic chemistry because living organisms are composed
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Separation of Amino Acids by Paper Chromatography Chromatography is a common technique for separating chemical substances. The prefix “chroma‚” which suggests “color‚” comes from the fact that some of the earliest applications of chromatography were to separate components of the green pigment‚ chlorophyll. You may have already used this method to separate the colored components in ink. In this experiment you will use chromatography to separate and identify amino acids‚ the building blocks of proteins
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boiling point than butane‚ CH3CH2CH2CH3. For the same reason‚ the boiling points of the straight chain alcohols also increase as the number of carbon atoms in the chain increases. Therefore butanol‚ CH3CH2CH2CH2OH‚ has a higher boiling point than propanol‚ CH3CH2CH2OH. Because of hydrogen bonding‚ the boiling point of an alcohol is higher than that of the alkane with the closest molecular weight‚ which is the one with one more carbon atom. Therefore‚ CH3CH2CH2CH2OH has a higher boiling point than
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Chromatographic conditions Shimadzu VP-ODS column is (250 mm x 4.6 mm i.d.‚ 5 µm particle size)‚ Shimadzu‚ Kyoto‚ Japan. The mobile phase consisted of a mixture of 0.3% TEA‚ 10% n-propanol in a solution of 0.1 M SDS adjusted to pH 2.8 using 0.02 M orthophosphoric acid. It was pumped at a flow rate of 1 mL min-1. The column was kept at ambient temperature and the wavelength of the detector was at 225 nm. Standard solutions Stock solutions of LVD‚ CBD and ETC containing to 1.0 mg mL-1 were prepared
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Practical 1 Title: Tissue Processing Aim: To examine human cell and tissue under the microscope Introduction: Tissues from the body taken for analysis of diseases must be processed in the histology laboratory to produce microscopic slides that are viewed under the microscope. These tissues are usually fixed into paraffin. Microscopic analysis of cells and tissues requires the preparation of very thin‚ high quality sections mounted on glass slides and properly stained to demonstrate normal and abnormal
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Victorian Certificate of Education 2012 CHEMISTRY Written examination Day Date 2012 Reading time: *.** to *.** (15 minutes) Writing time: *.** to *.** (1 hour 30 minutes) DATA BOOK Directions to students • A question and answer book is provided with this data book. Students are NOT permitted to bring mobile phones and/or any other unauthorised electronic devices into the examination room. © VICTORIAN CURRICULUM AND ASSESSMENT AUTHORITY 2012 2012 CHEM DATA BOOK 2 Table
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Chemistry 105 A Final Exam 06/24/10 First Letter of last Name Dr. Jessica Parr Question 1 2 3 4 5 6 7 8 9 10 Maximum points 18 8 12 12 8 10 12 10 6 6 (Sub-T) PLEASE PRINT YOUR NAME IN BLOCK LETTERS Name: __________________________________________ Last 4 Digits of USC ID:_____ _____ _____ _____ Lab TA’s Name: _________________________________ Score (102) Grader Question 11 12 13 14 15 16 17 18 19 20 (Sub-T) TOTAL
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solution to dry‚ we outlined the spots and calculated the Rf values to determine the identity of unknown #936 was phenylalanine. In regards to the Paper Chromatography experiment‚ the same steps were taken‚ but instead 5 mL of distilled water‚ 5 mL of 1-propanol‚ and 5 mL of 1-butanol were used in the developing chamber. The ingredients of each food coloring were analyzed using the Rf values of all the spots. I. Introduction Purpose: The purpose of this experiment was to become familiar with
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Title: Competing Nucleophiles (Exp 24‚ pp 211-221‚ pp 808-823‚ pp 836-842) Purpose: The purpose of this experiment is to determine the nucleophilic strength of chloride and bromide ions as it reacts with 1-butanol (n-butyl) and 2-methyl-2-propanol (t-butyl alcohol) under SN1 and SN2 conditions. Method: 40 g of ice and approximately 30 ml of sulfuric acid is cautiously added to a 100 mL beaker respectively. Weigh 7.6 g of ammonium chloride and 14.0 g of ammonium bromide and place it in
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