Preparation and purification of acetylsalicylic acid Results and Data treatment (A) Preparation of aspirin i) Details about the reactants Reaction of the acetylation of salicylic acid is following From the balanced reaction above‚ it can be seen that the stoichiometry between salicylic acid and acetic anhydride is 1: 1. In this experiment‚ 21.7mmol of salicylic acid was used to react 6.0mL of acetic anhydride and salicylic acid was limiting reagent. The expected amount of salicylic
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Preparation of methyl m-nitrobenzoate by nitration using methyl benzoate‚ nitric acid‚ and sulfuric acid Aileen Quintana TA: Sijie Tues/Thurs 11:50 42067 Introduction: The purpose of this lab was to explore the concepts of electrophilic aromatic substitution‚ specifically nitration by synthesizing methyl m-nitrobenzoate using methyl benzoate‚ nitric acid and sulfuric acid. This nitration is a type of electrophilic aromatic substitution. A
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11/17/2011 The Preparation of Calcium Carbonate Purpose: To create chalk (calcium carbonate) and to find the percentage yield in order to see the amounts of anhydrous sodium carbonate and calcium chloride were used up. Also to see if there’s any alterations like mass differentials. Objectives: 1. To introduce the concept of “limiting factor” in a chemical reaction 2. To practice a. Writing a balanced equation b. Determining the number of moles of each reactant and product
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BSc Pharmaceutical Technology Practical - No 5 Preparation of a Primary Standard Solution Aim: to prepare a standard solution of pure silver nitrate and use it to determine the concentration of chloride ions in a sample of tap water and another sample of bottled water. Chemicals: * High grade purity silver nitrate * Potassium chromate indicator * Tap water * Bottled water * Distilled water Apparatus: * Laboratory oven * Dessicator * Conical flask
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Food Preparation Appliances in Brazil Feb 18‚ 2015 – Navi Mumbai‚ India: Marketreportsonbrazil.com presents a report on “Food Preparation Appliances in Brazil.” Food Preparation Appliances in Brazil report offers a comprehensive guide to the size and shape of the market at a national level. Summary Within food preparation appliances‚ the growing success of “gourmet kitchens” continued to drive growth of the category‚ which increased in volume sales by 10% in 2014. The kitchen is enhancing its importance
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Case Study-3 Sri Harshaw Sri Kiran Giri Rohit Reddy Abstract This summary briefs about the steps that are followed in preparation of the budget for Production unit in Parkway Industries for the upcoming year. New budget process is advised to follow for making the estimate of the budget for the upcoming year to overcome the shortcomings of the previous budget estimate. Kairen Bailey is promoted to department manager of production unit in Parkway Industries. She is happy about the job but not happy
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Lay‚ Janine Group #5 December 4‚ 2012 Experiment 1: Preparation of Culture Media Materials: Erlenmeyer Flasks (2 pcs.) Petri dishes (11 pcs.) Cotton stopper Aluminum foil Masking tape NA powder PDA powder Pentel pen Stirring rod Casserole Electric stove Pressure cooker/ autoclave Steps in Preparation of Culture Media: 1. Calculate the total amount of media needed for the experiment (15ml for plates‚ 5-7 mL for tubes). 2. Weigh the required amount of powder needed to
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ABABIO BUAHEN SAMUEL CHEMISTRY ONE REF. NO: 20216815 EXPERIMENT A.1.1.2 THE PREPARATION AND STANDARDIZATION OF NaOH AND HCL SOLUTION AIMS & OBJECTIVES: (1) To gain experience with titration procedure (2) To learn to standardize acid & base solution (3) To carry out the preparation of solution of a desired concentration (4) To carry out the preparation of solutions of desired concentration from more concentrated solution INTRODUCTION: Titration is a convenient quantitative method for accurately
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8. three main types of hospitality operation: Johnston has proposed the concept of three main types of hospitality (industry) operations based on the hospitality exchange process: product processing operations‚ customer processing operations and information processing operations. Most activities are a combination of all three‚ albeit in different proportions. An accommodation operation is for example predominantly a customer processing operation‚ with very little product and information processing
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Ontario Public Service Writing a Cover Letter and Résumé: Tips‚ Tools and Resources Prepared by: Human Resource Service Delivery Excellence Branch Ministry of Government Services November 2011 OPS Cover Letter and Résumé Preparation Guide Table of Contents Page 1. What’s New.............................................................................................. 3 2. Preparing Your Application ...................................................................... 4 3.
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