COLLIGATIVE PROPERTIES 1. Calculate the vapor pressure when 10.o mL glycerol (C3H8O3) is added to 500.0 mL water at 500C. At this temperature the vapor pressure of pure water is 92.5 torr and its density is 0.988 g/mL. Density of glycerol is 1.26 g/mL. 2. Calculate the boiling point and freezing point of the solution if 1.00 kg of ethylene glycol (C2H6O2) is added to a car radiator which contains 4450 g water. a. Kb of water = 0.512 oC/m at normal boiling point of 100oC b. Kf of water
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Chapter 14 Lecture Outline Prepared by Andrea D. Leonard University of Louisiana at Lafayette Copyright © The McGraw-Hill Companies‚ Inc. Permission required for reproduction or display. Organic Compounds that Contain Oxygen‚ Halogen‚ or Sulfur Four families of compounds that contain a C atom singly bonded to O‚ S‚ or X (F‚ Cl‚ Br‚ or I) are: 1. Alcohols‚ which contain an OH (hydroxyl) group 2. Ethers‚ which have two alkyl groups bonded to an O atom 2 Organic Compounds that Contain
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example alcohols react with acid anhydrides to form esters: O CH3CH2OH Ethanol + O H3C O O CH2CH3 + CH3COOH Acetic acid C C H3C CH3 O Acetic anhydride Ethyl acetate Acid chlorides form esters by reaction with alcohols. O CH3CH2CH2OH 1-Propanol + H3C Cl Acetyl chloride C H3C O C O CH2CH2CH3 + HCl n-Propyl acetate In the latter reaction‚ an organic base such as pyridine is usually added to react with the hydrogen chloride. A number of other methods can be used to synthesize the
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Streptococcus pyogenes Research paper MCB 2010C March 17‚ 2014 Nature of Causative Organism Streptococcus pyogenes‚ a group A streptococci‚ is a gram-positive‚ non-spore forming bacteria that can be seen as oval cocci chain forming shapes less than 2 micrometers in diameter under the microscope. It is a facultative anaerobe that can use fermentation for its metabolism. It needs a blood containing medium to grow and exhibits beta-hemolysis. It is a non-motile‚ nonspore forming bacterium. S. pyogenes
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Research proposal: Intragastric and intranasal administration of Bifidobacterium animalis to reduce airway inflammation in asthma. Project submitted to : madam Raheela Rahmat Submitted by: Shazia Naseer Father name: Naseer Ahmed Seat number: Enrolment Number: Class: B.S.C (H) 3rd year Crouse #: 516 Department: Biotechnology Date of submission: nov5th‚ 2012 Submitted by: Shazia Naseer Father name: Naseer
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Dictionary of chemical formulas From Wikipedia‚ the free encyclopedia This is a list of chemical compounds with chemical formulas and CAS numbers‚ indexed by formula. This complements alternative listings to be found at list of inorganic compounds‚ list of organic compounds and inorganic compounds by element. Table of contents: A B C Ca-Cu D E F G H I K L M N O P R S T U V W X Y Z & [edit] Tables to be merged Inorganic: A B Ca-Cu G H I L M N O P S Organic: C C2 C3 C4 C5 C6 C7
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Everything you need to know about hydrocarbons INTRODUCTION: organic chemistry Organic chemistry is the chemistry of compounds that contain carbon and hydrogen. The element carbon has a special role in chemistry because it bonds with other carbon atoms to give a vast array of molecules. The varity of molecules is so great that we find organic compounds in many common products we use‚ such as gasoline‚ medicines‚ shampoos‚ plastic bottles‚ and perfumes. The food we eat is composed of different
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A CASE STUDY ON THE EVOLUTION OF MOSQUITO REPELLENTS By:- Rajdeep Laha Calcutta Business School PGDM 2010-12 OVERVIEW Traditionally‚ various types of substances have been used to repel mosquitos. These include such things as smoke‚ plant extracts‚ oils‚ tars‚ and muds. As insect repellent technology became more sophisticated‚ individual compounds were discovered and isolated. This allowed the formulation of new‚ more efficient forms of mosquito repellents. The first truly effective
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Matrix-assisted laser desorption/ionization (MALDI) is a soft ionization technique used in mass spectrometry‚ allowing the analysis of biomolecules (biopolymers such as DNA‚ proteins‚ peptidesand sugars) and large organic molecules (such as polymers‚ dendrimers and other macromolecules)‚ which tend to be fragile and fragment when ionized by more conventional ionization methods. It is similar in character to electrospray ionization both in relative softness and the ions produced (although it causes
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CHEMISTRY 101 FINAL EXAM SECTIONS 572-580 Dr. Joy Heising FORM 4N December 7‚ 2001 Directions: 1. Fill out your scantron sheet. a. Do not forget to include your SIGNATURE and ID number. b. Dept = CHEM‚ Course No. = 101 c. If you want your scores posted‚ mark A under the option column 2. Use a #1 or #2 pencil for marking the answer sheets. circles completely. 3. DO NOT write on the envelope. 4. Read each question carefully‚ then choose the best answer for each question. There is no penalty
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