separate individual components from a mixture through decantation‚ filtration‚ distillation‚ and crystallization. Pre-Lab Questions: Attached Apparatus and Supplies: • Electronic balance • 50 mL beaker • 100 mL beaker • 10x75 mm test tubes • Funnel • Hot plate • Glass rod • Filter paper • Ring stand • Ring support • Watch glass Chemicals and their properties: Chemical Physical
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The Grignard Reaction Abstract Through the use of the Grignard reaction‚ a carbon-carbon bond was formed‚ thereby resulting in the formation of triphenylmethanol from phenyl magnesium bromide and benzophenone. A recrystallization was performed to purify the Grignard product by dissolving the product in methanol. From here‚ a melting point range of 147.0 °C to 150.8 °C was obtained. The purified product yielded an IR spectrum with major peaks of 3471.82 cm-1‚ 3060.90 cm-1‚ 1597.38 cm-1‚ and 1489
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measured according to method reported by Jinapong et al. (2008). One hundred ml of distilled water at 30±2 °C was poured into a 250 ml beaker. A glass funnel held on a ring stand was set on the beaker with the height between the bottom of the funnel and the water surface of 10 cm. A glass rod was placed inside the funnel to block the lower opening of the funnel. The powder sample (1 g) was placed around the glass rod and then the glass rod was lifted while the stop watch was started at the same time. Finally
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TEACHER’S GUIDE CHEMISTRY TOPIC: OBSERVATIONS AND EXPERIMENTS USEFUL TIPS: Student’s experiments can be done in groups. Groups can be given different mixtures. Each group then carry out their own experiment‚ makes a write up of their procedure and presents to the rest of the class together with the samples obtained. UNIT 1: MIXTURES AND PURE SUBSTANCES This unit is suitable for senior one (S1) BRIEF DESCRIPTION OF THE UNIT: This unit deals with: • Methods of separating
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in the work group‚ and if they are not all followed through with then the results could be different than what they should be. In this paper‚ we will look at the roles of the prosecutor‚ how the criminal justice funnel effects the courtroom work group and what will help eliminate the funnel and reduce the backlog of cases. The courtroom work group is composed of various people who make the court systems work to the best of their ability. Each person has its position‚ and she/he is responsible for their
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solutions of o Sodium Hydroxide‚ NaOH(aq) o Iron(III) Nitrate‚ Fe(NO3)3 • Funnel • Cylinder Procedures 1. Put eye protection on for safety purposes. Part A: Reaction between Iron(III) Nitrate and Sodium Hydroxide. 2. Take two cylinders and fill one (full) with sodium hydroxide solution and other with Iron(III) nitrate solution. 3. Pour suitable amount (around 50 ml) of sodium hydroxide from the cylinder using a funnel into a Erlenmeyer flask. 4. Take a test tube and fill it half with the iron(III)
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Experiment 15 & 16: Preparation of 1-bromobutane‚ an SN2 reaction Preparation of 2-chloro-2-methylbutane‚ an SN1 reaction Introduction The purpose of this experiment is to synthesize 1-bromobutane from 1-butanol and sodium bromide. In order for this reaction to reach completion there are four major operations that need to be performed. The four major operations include refluxing‚ simple distillation‚ separation‚ and drying. To begin‚ in order for the compounds to react they will be dissolved
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Empirical Formula of Copper (II) Chloride Gabriella Jane Lukas B1401404 HELP University Empirical Formula of Copper (II) Chloride Objectives 1. To validate that the empirical formula of copper (II) chloride is . 2. To calculate the percent composition of copper in copper (II) chloride. 3. To illustrate the Law of Constant Composition in copper (II) chloride. 4. To study the reaction between copper (II) chloride solution and aluminium metal. Introduction One of the most fundamental statements
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Abstract Fisher Reaction is a special type of esterification that uses an acid catalyst to reflux Carboxylic acid and Alcohol. The product Ester is in equilibrium to the reactants acid and alcohol. Ester is responsible for the smell and aroma of different fruits. After using the Fisher reaction‚ a combination of techniques is used to separate the product. Introduction Esters are naturally occurring compounds that possess a distinctive odor. It is responsible for the smell of different fruits
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air space in the cylinder will be less compared to warm water. Independent: Type of water. Dependant: room temperature‚ amount of water‚ type‚ size and amount of tablet‚ amount of water in the basin. Materials: 250ml graduated cylinder Funnel Petri Dish Transparent basin Stand and Clamp Cold Water Warm Water Alka Seltzer Tablets Method: 1. Fill the basin half full with type of water. Place the stand beside the basin 2. Fill the graduated cylinder to the brim with the selected
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