acid-base behaviour of amino acids was assessed. Amino acids are amphoteric. They have the basic (amine) and the acidic (carboxylic) functional groups. These show the same type of equilibrium reactions that all weak acids and bases undergo‚ and the relative amount of each can be altered by adjusting the pH of the solution. For this practical glycine was used as a model to show this unique nature of amino acids. A series of four acid –base titrations were conducted; 25ml of 0.1M glycine in solution titrated
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1. Sodium and potassium are the most frequently ecountered alkali metals‚ though rarely as the metal. Why these elements are rarely found as the metal? (Refer to the relative measurements tabulated in the form of electronegativities‚ ionization energies‚ or reduction potentials). These are due to the fact that their outer most orbital (ns1 valence electron configuration) has tendency to lose electron very easily and make stable configuration. The single valence electron is relatively far from the
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Spinal Cord Injury and the effect of Morphine Marisa Mucka May 5‚ 2014 Intrathecal Morphine Attenuates Recovery of Function after a Spinal Cord Injury A human body endures a lot of injuries such as broken bones‚ cuts‚ heart attacks but one serious injury is “spinal cord injury” which can be a obstacle to medicine. With such injury‚ as a spinal cord‚ the recovery itself can be very painful to handle so most patients are administered pain killers to minimize
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because the alcohol functional group was attached to a tertiary carbon‚ which makes it very compatible to have the compound go through an E1 reaction. In addition‚ we were using sulphuric acid with heat‚ it is considered as a weak base making the reactivity for an E1 reaction strong. The reaction also would favor a protic solvent in order for it to be an E1 reaction. When the compound goes through the E1 reaction‚ it forms a carbocation‚ and in some cases it could be formed on a secondary carbon
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CORE SYLLABUS for National Eligibility-Cum-Entrance Test (NEET) for Admission to MBBS/BDS Courses The Medical Council of India (MCI) recommended the following syllabus for National Eligibility-cum-Entrance Test for admission to MBBS/BDS courses across the country (NEET-UG) after review of various State syllabi as well as those prepared by CBSE‚ NCERT and COBSE. This is to establish a uniformity across the country keeping in view the relevance of different areas in Medical Education. PHYSICS
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Television and the Autistic Child: Effects of Aggressive Programming Nicolette Stoltman University of Phoenix Com 220 With few exceptions‚ the information on the effect of television on children has focused on normal (i.e.‚ nonhandicapped) populations. The intention of this essay is to explore the impact of the medium of television on Autistic children because their use of and reaction to television may differ from that of the larger population. This essay will provide an overview
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References: 1) Reusch‚ Rosetta N. "Chemical Reactivity." Chemical Reactivity. Michigan State University‚ n.d. Web. 14 Sept. 2013. 2) Jaschke‚ A.; Seeling‚ B.; Keiper‚ S.; Stuhlmann‚ F. Angew. Chem. Int. Ed. 2000‚ 39‚ 4576-4579. Enantioselective Ribozyme Catalysis of a Bimolecular Cycloaddition Reaction. 3) Weldegirma
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CASE STUDY: BEL GROUP Leading the Herd Bel Group Centralizes Its Supply Chain Processes and Brings Its Innovative Cheese Brands to a Global Audience B el Group was established in 1865 in a mountainous region of France called Jura. Cheese maker Léon Bel discovered that‚ by melting whole cheese with butter‚ he could create processed cheese with a much longer shelf life. He decided to call his new product La Vache Qui Rit‚ or The Laughing Cow — and a global brand was launched. Over the years
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chemical activity of a metal is directly related to its practical use. In this investigation you will investigate the chemical activity of metals with oxygen‚ water‚ acid and alkali‚ to rank metals in order of their activity. Aim: To observe the reactivity of metals in order to determine the activity series of metals. Risk Assessment: In this investigation‚ hydrochloric acid solution is used which is toxic by all routes of exposure and is also a lung irritant. To avoid harm and ensure safety‚ eye
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Chemical Earth 1. The living and non-living components of the Earth contain mixtures Construct word and balanced formulae equations of chemical reactions as they are encountered 1. Build a word equation Reactants on left‚ Products on right 2. Convert word equation into chemical formula for the reactants and products Using valency rules 3. Balance the equation Adjust coefficients to get equal numbers of each kind of atom on each side 4. Specify the physical state for each species present
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