drinks in 1950 when research showed there were harmful effects to humans (“The Origins of Soda”). There are several toxic ingredients in today’s chemistry‚ that are causing health concerns. Ingredients such as: Phosphoric Acid‚ Citric Acid‚ Sodium Benzoate‚ High-Fructose Corn Syrup‚ Caffeine‚ Caramel
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Introduction : "Aromatic" and "aromatic compound" sidetrack here. For implications identified with odor‚ see fragrance compound. Two distinctive reverberation types of benzene (top) consolidate to create a normal structure (base) In natural science‚ the term aromaticity is utilized to depict a cyclic (ring-molded)‚ planar (level) particle that shows strange dependability when contrasted with other geometric or connective game plans of the same arrangement of iotas. As an aftereffect of their security
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Separation of Acidic‚ Basic and Neutral Substances by Extraction KEYWORDS Solubility‚ density‚ organic layer‚ aqueous layer‚ drying agent‚ protonation‚ recrystallization‚ neutralization‚ extraction ABSTRACT: The purpose of this experiment is to separate the substances in the acidic mixture and identify each constituent in the mixture that were individually separated using extraction. Three reaction tubes were used in the experiment. An acidic mixture containing benzoic acid‚ naphthalene‚
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purpose of the experiment is to investigate the effects of column temperature and flow rate on the separation of methyl esters compounds. On top of that‚ the experiment is conducted to explore the gas chromatography‚ which is include the concepts of retention time and resolution using a mixture of methyl esters: methyl linolate‚ methyl laurate‚ methyl myristate‚ and methylpalmitate and methyl stearate. In this experiment‚ the isothermal and temperature programming are required in order to get an optimize
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Title:Extraction:Extraction with acid and alkaline Objective: 1. To recover benzoic acid and p-dichlorobenzene from its mixture using acid-alkaline extraction. 2. To determine the percentage recovery and melting point of benzoic acid and p-diclorobenzene. Apparatus:Separatory funnel(250mL)‚Buchner funnel‚beaker. Materials:Benzoic acid‚p-dichlorobenzene‚ether‚10% NaOH‚conc.HCl‚distilled water‚ anhydrous CaCl2. Introduction: Organic compounds in an aqueous mixture can be separated
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This experiment focuses on the concept of electrophilic aromatic substitution‚ which is a type of benzene reaction. This reaction consists usually of benzene and an electrophile. The role of the nucleophile is played by the double bond on the benzene ring. IT will react will the electrophile and this reaction will form a carbon cation intermediate. With additional reactions with a base‚ the electrophile fundamentally replaces the hydrogen of the benzene. Benzene is classified as one of the countless
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DELHI PUBLIC SCHOOL DAGAPUR ‚ SILIGURI (Affiliated to C.B.S.E.) Session :- 2012-13 Topic : Study of effect of Potassium bisulphite as a food preservative Submitted To: Submitted By: Mr. B.GHOSH H.O.D. Chemistry 12th Science Roll no. = Certificate This is to certify that s/o Mr. Amar Singh is a bonafide student of class XIIth Science during session 2012-2013. He has completed his project on Study of effect of Potassium bisulphite
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Introduction Chemistry: Chemistry is the science of matter‚ especially its chemical reactions‚ but also its composition‚ structure and properties. [pic] Daily Life: All the things that happen or that you do regularly. Chemistry in Daily Life: Chemistry is a big part of our everyday life. We find chemistry in daily life in the foods we eat‚ the air we breathe‚ our soap‚ our emotions and literally every object we can see or touch. Here’s a look at some everyday chemistry. [pic] Actually‚ we found
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P H A R M A C EU TIC A L S O LU TIO N S PA R T I Pharmaceutical Technology II PHAR 2332 LEARN IN G O BJECTIVES At the end of the lecture‚ the students should be able to; 1. Define pharmaceutical solutions. 2. Discuss the advantages & drawbacks of pharmaceutical solutions as dosage form. 3. Explain the formulation components in pharmaceutical solutions. 4. Describe types of pharmaceutical solutions. Solutions are: Dosage forms prepared by dissolving the active ingredient(s) in an aqueous or
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Title The absorption spectrum of methyl orange Aim To prove beer lamberts law Introduction This experiment is to prove Beer lamberts law‚ which states that absorbance is proportional to concentration. Part one materials 1. Colorimeter 2. Methyl orange 3. Potassium permangate 4. Cuvette 5. Deionised water Part one methods 1. Rinse one cuvette with deionised water 2. Fill one cuvette with deionised water and “zero” the colorimeter machine 3. Fill the cuvette that
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