various alkyl halides under Sn1 and Sn2 conditions. We will be examining Sn2 reactions with the Finkelstein reaction. The conditions for this are NaI in acetone. NaI is soluble in acetone but the products of the reaction; NaCl and NaBr are not. We will watch the reaction by looking for the first appearance of the solid salts. Acetone is a good solvent for Sn2 reactions because it is a polar aprotic solvent. We will be examining Sn2 reactions with an ethanolic solution of silver nitrate
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Schiff’s Test – Test for aldehydes * Purple solution * Formalin - positive * Acetone (ketone) * Benzaldehyde – positive * Acetophenone (aromatic ketone) * Tollen’s Test – Test for aliphatic and aromatic aldehydes * Silver mirror * Formalin – positive * Glucose – positive * Benzaldehyde – positive * Acetone * Fehling’s Test – Test for Aliphatic aldehydes * Brick red precipitate (cuprous oxide)
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carotenoid pigments by using acetone as the solvent. The chlorophyll and carotenoid pigments were extracted by using column chromography and alumina was used as the solvent. Solvents of different polarities were used‚ starting with the least polar‚ to extract the certain components from the leaves. They were then analyzed by using thin- layer chromatography. Procedure: The first part of the experiment dealt with breaking down the spinach leaves in a mortar and pestle. Acetone was added to this to help
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destroyed‚ the permeability of the cell membrane is disrupted causing cellular contents to leak out. When cells are cut‚ the cell membranes are mechanically ruptured. High temperature disrupts the structure of proteins and certain chemicals such as acetone and methanol dissolve the phospholipids‚ leading to damage of the membrane and therefore leads to increased permeability. Beetroot is the material used in this experiment to demonstrate the effects of high temperature and chemicals on the permeability
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features. So‚ it can form complex ions readily. Apparatus and Materials: Measuring cylinder‚ suction filter‚ measuring cylinder‚ beaker‚ conical flask‚ petri dish‚ glass rod‚ copper(II)nitrate‚ water‚ ammonia‚ acetyl acetone Procedure: 1. 6g of Copper(II) nitrate (Cu
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3. Transfer the beaker from the ice bath onto the hot plate and measure the temperature of this solution to make sure it was still at or under 25 °C. 4. After letting the mixture stir for some time‚ prepare 5mL of benzaldehyde with 1.85mL of acetone into a 50mL Erlenmeyer Flask. 5. Transfer about half of the mixture into the stirring solution of NaOH‚ water and ethanol. After 2 -3 minutes‚ yellow cloudiness formed. After 10 minutes add the remainder of the solution. Allow the solution to stir
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polystyrene dissolves in the acetone‚ the air in the foam is released‚ causing it to look like you’re dissolving this massive quantity of material into a small volume of liquid. You can see a less-dramatic version of the same effect by dissolving other polystyrene items in acetone. Common polystyrene products include disposable razors‚ plastic yogurt containers‚ plastic mailers and cd jewel cases. The plastic dissolves in just about any organic solvent‚ not just acetone. Acetone is found in some nail polish
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Kinetics of an SN1 reaction: the effect of solvent on rate Object The purpose of this experiment is to determine the rate of hydrolysis in acetone/water (50/50 v/v and 60/40 v/v). Background and Theory An SN1 reaction of tert-butyl chloride takes place in two steps. First‚ the Alkyl Halide will leave the molecule. In this step the bond is breaking‚ which takes a longer amount of time‚ so it will determine the rate of the reaction. As a result‚ it forms a tertiary carbocation‚ since this
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Investigatory project Cassava starch as an effective component for Ideal Biodegradable Plastic Members: Wesley Ong Kyle Cheng Georwin Ng Charles Ngan Raphael Chan Table of contents I. Introduction II. Review of related literature III. Methodology Introduction A. Background of the study The cassava root is long and tapered‚ with a firm‚ homogeneous flesh encased in a detachable rind‚ about 1mm thick‚ rough and brown on
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reagents‚ sodium iodine in acetone and silver nitrate in ethanol. (Below are the reaction equations). We used different substrates‚ which were primary‚ secondary‚ and tertiary. These substrates included 2-bromobutane‚ 2-bromo-2-methylpropane‚ 1-bromobutane ∞-Bromotoluene‚ bromobenzene‚ and I-bromoadamantane. This lab helped discover what kind of mechanisms (either SN1 or SN2) are involved in the performed reactions. 1. Sodium Iodine in Acetone: RX + NaI -----Acetone----> RI + NaX (X=Br)
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