Introducton : The most common macromolecules found in living organisms are carbohydrates ‚ lipids‚ proteins and nucleic acids. Briefly‚ the meaning of macromolecules is that they normally contain two or more molecules in them and their main functions are to store energy‚ information and much more. Most foods are known to be combinations of macromolecules. While some of these compounds can be detected by taste tests‚ many cannot. Scientists then use certain tests to determine the presence of
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common chemicals are used because of cheaper price. This study aims to determine the orange as an effective stain remover. The orange (specifically‚ the sweet orange) is the fruit of the citrus species Citrus× sinensis in the family Rutaceae. Orange is widely grown in tropical countries like Philippines for their sweet fruit‚ which cann be eaten fresh or processed to obtain juice‚ and for the fragrant peel. Orange Nutritional value per 100 g (3.5 oz) Energy 197 kJ (47 kcal) Carbohydrates
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#15 Synthesis of Ethyl Salicylate from Salicylic Acid ____________________________________________________________ _______________ Purpose: Salicylic acid is converted to the liquid ethyl salicylate by addition of ethanol. Yields of salicylic acid (week 1) and ethyl salicylate will be found‚ as well as the overall yield of the 2-step conversion of acetyl salicylic acid to ethyl salicylate. Introduction: Esters are formed from the reaction of acids and alcohols: O O
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Tomas Faculty of Pharmacy Organic Chemistry Laboratory RECRYSTALLIZATION OF ACETANILIDE USING WATER AS SOLVENT Lagarteja‚ M.C.B.; Lim‚ H.G.N.; Lizo‚ K.J.R.; *Macalino‚ M.D.L.; Macapala‚ C. 2D-Pharmacy‚ Faculty of Pharmacy‚ University of Santo Tomas Abstract Recrystallization is a technique used to purify organic solids. This method involves dissolving of a solute in a solvent and inciting the solute to produce a precipitate from a solution. In this experiment‚ acetic anhydride was added
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effect of citric and buffered lactic acids on the flavour of hard-boiled sweets and the effect of acids on various flavours in high temperature applications. Introduction Materials and Methods An amount of water‚ sugar and glucose syrup of 30g‚ 100g and 70g were weighed respectively into a stainless steel pot. The mixture was then heated and removed immediately from the induction cooker after reaching the desired temperature of 145˚C. Flavours of 0.51g and acid of 1.20g was added immediately afterwards
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English Composition 102 April 27‚ 2012 Morality: Manner‚ Character and Proper Behavior INTRODUCTION In his film A Clockwork Orange‚ Stanley Kubrick‚ an American film director and producer‚ creates a futuristic London where youth gang violence and other social subjects are portrayed. The main character‚ Alex DeLarge‚ is a sociopath who likes listening to Beethoven and is fascinated with raping women‚ amongst other things he is also the leader of the gang‚ which consists of Dim‚ Georgie and
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Experiment 8: Synthesis of Adipic Acid Performed November 8th & 10th By Jennifer Seitz Organic Chemistry 344 Section 803 Fall 2011 Objective: The purpose of this experiment was to synthesize adipic acid from cyclohexanol via an oxidation reaction that was catalyzed by sulfuric acid. Purity of the product was assessed by measuring the melting point. Physical Properties/Structures: Name | Formula | Molecular Weight (g/mol) | Boiling Point (0C) | Melting Point(0C) | Density(g/mL)
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A Clockwork Orange The freedom of choice and the rehabilitating form of corrections encase the realm of A Clockwork Orange‚ by Anthony Burgess. It produces the question about man’s free will and the ability to choose one’s destiny‚ good or evil. "If he can only perform good or only perform evil‚ then he is a clockwork orange-meaning that he has the appearance of an organism lovely with colour and juice but is in fact only a clockwork toy to be wound up by God or the Devil or State"(Burgess ix)
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Recrystallization is the process in which a chemical compound becomes a solid. The difference between recrystallization and the presence of precipitate is the structure. In Cystristalizatqion the solid compound contain a crystal-like structure. According to Hill and Barbaro the most common method of purifying organic compounds. Not only does recrystallization allow people with the ability to converting organic molecules to crystal-like solids. This process is performed in the creation of rock candy
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Acids‚ Bases‚ and pH Lab In this lab the testing of whether or not a substance was an acid or a base occurred. Each substance was tested with the indicators red litmus paper‚ blue litmus paper‚ pH paper‚ phenolthalein‚ bromthymol blue‚ and phenol red. While the substances were tested the group noticed that the substances tested with the red and blue litmus paper‚ the phenolthatein‚ bronthmol blue were the easiest to interpret. The color changes that occurred when this indicator was put into a substance
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