Lye is a corrosive alkaline substance‚ commonly sodium hydroxide (NaOH‚ also known as ’caustic soda’) or historically potassium hydroxide (KOH‚ from hydrated potash). Previously‚ lye was among the many different alkalis leached from hardwood ashes.[1] Today lye is commercially manufactured using a membrane cell method. Solid dry lye is commonly available as flakes‚ pellets‚ microbeads‚ and coarse powder. It is also available as solution‚ often dissolved in water. Lye is valued for its use in food
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Table 8.5- Single replacement reaction of potassium Observations Lithium was malleable; splint ignited; test tube was cold after the reaction took place; turned pink when phenolphthalein was added. Reactants: K and H2O Products: H2 and KOH Balanced chemical equation 2K + 2H2O 2KOH + H2 Table 8.6- Chemical reaction of copper strip and 4 mL silver nitrate Observations Precipitate formed on copper strip; precipitate was greenish brown in color. Reactants: Cu and AgNO3 Products:
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Title:Identification of Amino Acids and Proteins Introduction : Amino acids are molecules containing an amine group(NH3)‚ a carboxylic acid group(R-C=O-OH) and a side-chain( usually denoted as R) that varies between different amino acids. The key elements of an amino acid are carbon‚ hydrogen‚ oxygen‚ and nitrogen. Proteins are biochemical compounds consisting of one or more polypeptides typically folded into a globular or fibrous form in a biologically functional way. A polypeptide is a single
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Instructions You must SHOW WORK AND PROBLEM SET-UP for CREDIT. You have to SUPPORT your answers by calculations and/or reasoning. If you do not understand something in the assignment or are not sure how to approach a question - EMAIL me before you submit. This assignment must be submitted no later than November 22nd‚ 2011. 1. What is a true solution? Explain why the solute does not settle out of a solution. Is it possible to have one solid dissolved in another? Explain. In metals it would
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Classification for Functional Groups Alcohols Lucas test (Differentiates primary‚ secondary‚ and tertiary alcohols) Reagent: ZnCl2 in conc. HCl Observation: Rate of reaction (tertiary alcohol> secondary alcohol> primary alcohol) Procedure: 2mL Lucas Reagent in test tube+ 3-4 drops of alcohol‚ stopper‚ shake vigorously‚ NOTE time required (less than 10m mins only) to form an emulsion or separate layers. Oxidation (Confirms if alcohol is oxidizable: presence of H in C-OH bond) Reagent:
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International Journal of Pharma and Bio Sciences RESEARCH ARTICLE ARTICALTICLE MEDICINAL CHEMISTRY SYNTHESIS‚ CHARACTERIZATION AND BIOLOGICAL STUDIES OF SCHIFF BASES METAL COMPLEXES CO (II)‚ ZN (II)‚ NI (II)‚ AND MN (II) DERIVED FROM AMOXICILLIN TRIHYDRATE WITH VARIOUS ALDEHYDES. Corresponding Author SUNIL JOSHI Synthetic Lab‚ P. G. Department of Chemistry‚ Faculty of Science‚ Government College‚ Ajmer‚ Rajasthan (INDIA). Co Authors VATSALA PAWAR ‚ AND V.UMA Synthetic Lab‚ P. G
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Abstract: The objective of the experiment was to prepare Benzilic acid by multistep synthesis starting with benzaldehyde. In this setup however‚ product of the first step‚ Benzoin‚ is provided thereby omitting the first step involving the conversion of benzaldehyde. For this experiment‚ the microscale techniques of reflux‚ crystallization‚ and melting-point determination were used. Utilizing these techniques a product yield of 93% for benzil and 57% for Benzilic acid was obtained‚ as well as
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Benjamin Koh Class: 4.03 Topic: ‘Challenges in life bring out the best in a person.’ Is this always true in your experience? Challenges in life are obstacles that one has to surmount‚ to overcome in order to progress and to do so usually requires a display of admirable qualities such as courage and perseverance. Does challenges in life always bring out the best or the worst in a person? This is debatable as challenges can either make or break a person. Some people may not be able to hold out
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The purpose of the making alum from aluminum lab was to create alum from a series of chemical reactions involving aluminum. Small pieces of an aluminum can were cut and measured before being taken through a series of chemical reactions. This process involved filtering out waste product that was no longer needed in the reaction by using Whatman #4 filter paper and an aspirator. The first reaction that took place was placing aluminum pieces into the strong base NaOH and then heating it. This reaction
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1. (a)Correct the following statements. (i) The melting points of crystalline and amorphous solids are not definite. The melting point of an amorphous solid is not definite. OR The melting point of a crystalline solid is definite. P Ps X solute . Ps P Ps The equation for relative lowering of vapour pressure when solute remains normal is X solute P (iii)The degree of ionization decreases with dilution. The degree of ionisation increases with dilution. (iv) Tertiary butyl halide
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