Anthony Young Partner: Nick Dale TA: Alekhya 6/15/15 The SN2 Reaction: Factors Affecting SN2 Reaction. Introduction In the substitution reactions‚ the leaving group from the substrate is replaced with the nucleophile. Because of the nucleophile it is called nucleophilic substitution. The lone pair of electrons‚ present on the nucleophile is used to create a new bond with the carbon atom‚ from which the leaving group was separated. There are two different mechanisms of nucleophilic substitution: SN1
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decomposed in the process. Electrode a rod or plate where electricity enters or leaves electrolyte during electrolysis. Reactions occur at electrodes. Discharge the removal of electrons from negative ions to form atoms or the gain of electrons of positive ions to become atoms. Anode positive electrode connected to positive terminal of d.c. source. Oxidation occurs here. Anode loses negative charge as electrons flow towards the battery‚ leaving anode positively
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In acidic solution‚ iodide ions should be oxidized by the hypochlorite ions to iodine and therefore gave a purple black color. The result of this experiment was not very satisfactory‚ although the reaction was carefully controlled so that the temperature was kept more or less at 40oC. First of all
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Ionic Compounds Ionic compounds consist of cations (positive ions) and anions (negative ions). The nomenclature‚ or naming‚ of ionic compounds is based on the names of the component ions. Here are the principal naming conventions for ionic compounds‚ along with examples to show how they are used: Roman NumeralsA Roman numeral in parentheses‚ followed by the name of the element‚ is used for elements that can form more than one positive ion. This is usually seen with metals. You can use a chart to see
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Applications of Le Châtelier’s Principle (September 11 - 15‚ 2014) **The purpose of this experiment was to visually observe the effects of how changing certain aspects of the reaction affected the observed equilibrium. PROCEDURE: Introductory activity Part A: Effect of Concentration: Two different temperature water baths were created‚ one at 65-70oC‚ the other ice‚ and set aside for Part B. 20 mL of potassium thiocyanate solution were poured into a petri dish. The initial color and all subsequent
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as proteins and polysaccharides(starch) that have dimensions significantly greater than the pore diameter of the dialysis tubing can pass through the tubings and they are retained inside the tubings.Smaller molecules such as water molecules and iodide ions are small enough to pass through the pores. The left-handed dialysis tubing contains 20%sucrose and iodine solution .The right-handed dialysis tubing contained 5% starch solution . The two entire dialysis tubings are submerged in distilled water
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August 28‚ 2009 [PROBLEM SET FROM R. CHANG TEST BANK] Chapter 16 Acid-Base Equilibria and Solubility Equilibria Student: ___________________________________________________________________________ NOTE: A table of ionization constants and Ka’s is required to work some of the problems in this chapter. 1. In which one of the following solutions will acetic acid have the greatest percent ionization? A. B. C. D. 2. Which one of the following is a buffer solution? A. B. C. D. E. 3. 0.40 M HCN and
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any of the chemicals. some chemicals with safety hazards we will be working with are Sodium chloride with is slightly toxic if ingested. Sodium Bromide which is slightly toxic if inhaled or ingested may cause serious eye damage if in contact. Sodium Iodide may cause serious eye damage‚ corrosion or irritation causes skin irritation. Silver Nitrate may cause skin corrosion or irritation also may cause severe skin burns and eye damage‚ very flammable keep away from heat‚ sparks‚ open flames‚ and hot surfaces
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Through an oxidation reaction of synthesizing pentaaminechloridocobalt (III) chloride with cobalt (II) hexahydrate and hydrogen peroxide‚ and then reacting the product with ammonium chloride and ammonia‚ complexes are formed with the chloride and ammonia ions. The balanced
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atom becomes a cation and a nonmetal becomes an anion. The oppositely charged ions attract one another and form an ionic compound Covalent: nonmetal & nonmetal Covalent bonds are shared; Ionic bonds are distributed Covalent bonds are stronger than Ionic bonds Ionic Compounds: Ionic compounds consist of positive and negative ions. The ions are held together by strong attractions between the oppositely charged ions‚ called ionic bonds Properties of ionic Compounds: The physical and chemical
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