works by preventing the formation of prostaglandin. Prostaglandin is the active agent that is responsible for the sensitisation at the nerve endings. It can be administered orally‚ rectally or by intravenous route. (6) Benzene ring Carboxylic acid Ester Alkane Aspirin has a pKa of 3.49 and a melting point of 138-140 degrees Celsius. Aspirin molecule’s are insoluble in water that is why it must be sold in a solid form‚ there are no liquid forms of aspirin available. Aspirin is ionised in the stomach
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Cyberspace: If You Don’t Love It‚ Leave It In Ester Dyson’s essay‚ “Cyberspace: If You Don’t Love It‚ Leave It” she argues that regulating the internet is impossible and will have an opposing effect. Dyson highlights cyberspace regulations that did not work and why we need self rule. Dyson also talks about the uniqueness of cyberspace and the conflict it would have on earth. Dyson’s belief is that everyone should have a choice and an individual responsibility and how the uniqueness of cyberspace
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Experiment 6 Preparation and reactions of boric acid Objectives: To prepare boric acid from sodium tetraborate (borax) To carry out tests on the prepared sample of boric acid To study the physical and chemical properties of boric acid Introduction: Boron is an element in the p-block of the periodic table. It has the electron configuration of 1s22s22p1 and is in group 3 or goup 13 (IUPAC classification). In nature‚ it consists of two isotopes 10B (19.6%) and 11B (80.4%). Boron is bonded
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Running head: Organic Chemistry Tamanna Ashraf Palm Beach State College Principle of Chemistry Ceravolo‚ Joseph MW 11:00am-12:15pm February 6th‚ 2011 We all are living in a science world. Everything has some kind of reaction going on in our living area. It is just we do not get to see or realize that where n how we having our life much easier than it used to be. In these writing assignments‚ the topic is about the organic chemistry. In organic chemistry‚ we all have different kinds of compounds
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Cole. Purpose: In this experiment‚ potassium carbonate combined with a quaternary ammonium salt to form a strong base. The strong base created an anion from an ester of malonic acid. The ion reacted with bromobutane which was also in the reaction solution to give the product. The yield product was a butyl derivative of malonic ester that was isolated by adding water to the reaction solution‚ and extracting with ether. The ether was dried and evaporated to give the product. Procedures: 0.039g
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structure of glass at all. It is an organic polymer. Today this polymer is used in all sorts of applications. The formation of plexiglass was begun in 1930‚ at McGi11 University by William Chalmers‚ a research student. He polymerized methacrylic ethyl ester and methacrylic nitirile‚ creating a clear plastic paste. Later‚ in 1936‚ Walter Bauer and Otto Rohm accidentally developed plexiglass by pouring the gum between two sheets of glass. The gum hardened and separated cleanly from the glass sheets. They
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Definition of Functional Foods History of Functional Plainly stated‚ functional foods are Labeling and Claims Foods defined as foods that‚ in addition to supplying known nutrients‚ can provide other health benefits as well. Many common foods possess nutritional qualities that are not established as recommended nutrients‚ but are considered to have functional benefits such as reducing your risk of disease or promoting good health. A good example of a functional food would be the cranberry‚ known
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reagent and carbonyl compound‚ whereas aldehyde is the most reactive and then to ketone or ester. Primary alcohol is produced through reaction between Gridnard reagent and formaldehyde or ethylene oxide or alcohol halide; secondary alcohol is produced using Gridnard reagent and aldehyde or carboxylate; while tertiary alcohol is produced using Gridnard reagent and ketone‚ ester‚ chloride or unsaturated ester etc. Gridnard reagent is prepared by reaction between Mg and halogenated aliphatic or aromatic
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Benzocaine is a topical anesthetic commonly used to relieve pain or discomfort . There are many brands of benzocaine and it is the active ingredient in various over-the-counter analgesic ointments . Benzocaine is the ethyl ester of paraaminobenzoic acid and as an ester it can be classified by Fischer esterification. Fischer esterification reactions typically include a carboxylic acid and alcohol as well as a dehydrating agent . Since esterification reactions are slow‚ a catalyst is required. The
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help you answer this question. The molecular formula of citrate is C6H8O7. What is the molecular weight of this drug? A. 29.08 B. 192.08 C. 192 D. 29.01 9. _______ is a compound formed from combining a carboxylic acid and an alcohol. A. Ether B. Ester C. Aldehyde D. Ketone 10. How many additional electrons does carbon need in its outer shell to achieve the greatest stability as an atom? A. Two B. Three C. One D. Four 11. Amitriptyline (Elavil) is a/an A. anti-inflammatory. B. antidepressant. C
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