crystallization and vacuum filtration. The experiment was carried out two times‚ both of which were successful. Background Information: This experiment combined all the knowledge of the previous labs performed throughout the semester. An unknown mixture containing an organic acid or base and an organic neutral compound in nearly equal amounts needs to be separated to its separate components. An understanding of solubility‚ extraction‚ crystallization and vacuum filtration is necessary in order
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Acetylsalicylic Acid (Aspirin) Synthesis Telow‚ AJV Sumicad‚ CJ‚ Tavanlar‚ EMMT‚ Chem 40.1‚ Institute of Chemistry‚ University of the Philippines Los Baños I. Introduction Organic synthesis is the process where a desired organic compound is constructed or prepared from commercially available materials. The objective of organic synthesis is to design the simplest synthetic routes to a molecule. Aspirin‚ also known as acetylsalicylic acid is as salicylate drug often used as analgesic
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from physical combination of various substances‚ and are called mixtures. Mixtures can be classified into homogeneous and heterogeneous. The purpose of this lab is to learn how to 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
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should take a look at the inflatable hot tub reviews below. They are all from Bestway and very popular among those who have already purchased them. Bestway’s Lay-Z-Spa Miami Inflatable Hot Tub The Bestway Lay Z spa has a rapid heating and water filtration system that can warm up the water temperature to 104F or 40c. It is easy to operate and makes use of the Lay-Z massage system. You do not need any tools to set it up. All you have to do is put it into a level area‚ add air‚ add water‚ and enjoy
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Gravimetric Analysis CHEM 200-03 Fall Semester 2012 September 19‚ 2012 Jeff Marasigan Abstract Gravimetric analysis is based on the quantitative isolation of the desired constituent the analyte of interest from the sample in highly pure form or in some combined form and weighing the isolated constituent. The desired constituent is usually isolated or separated by precipitation. From the weights of sample and precipitate‚ the percentage of the constituent in the original sample can
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heterogeneous mixture composed of 5.00 grams of salt‚ 2.00 grams of sand‚ 50.0 mL of water‚ 15.00 grams of pebbles‚ and 1.00 gram of iron filings‚ and leave as much salt as possible remaining. Using separation techniques including magnetizing‚ evaporation‚ filtration‚ etc. the heterogeneous mixture was thoroughly separated into 4.88 grams of salt. There have been some errors regarding the isolation techniques and processes‚ however‚ the mass of salt at the end is substantial enough to conclude that results obtained
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LMounika Alluri Chemistry HL Block D 19/9/12 LAB REPORT #1 LIMITING REAGENTS INVESTIGATION Aim: To determine the limiting reagent and percent yield of the reaction between potassium iodide with lead (II) nitrate solution. Apparatus required: Safety glasses‚ funnel stands‚ watch glass‚ oven‚ electronic balance‚ wash bottle with distilled water‚ test tubes‚ 10.0mL 0.50M lead (II) nitrate‚ 10.0mL 0.30M of potassium iodide solution‚ two 100.0 mL beakers‚ funnel‚ filter paper. Reaction
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SINGAPORE POLYTECHNIC SCHOOL OF CHEMICAL AND LIFE SCIENCES Diploma in Applied Chemistry with Pharmaceutical Science Organic Chemistry (CP4120/CP4502) Project Preparation and Recrystallisation of Aspirin. AY2010/2011 Name: XXXX Class: DACP 1B/02 Admin no.: P1234567 Table of Contents Page List of illustration
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water)‚ but water purification may also be designed for a variety of other purposes‚ including meeting the requirements of medical‚ pharmacological‚ chemical and industrial applications. In general the methods used include physical processes such as filtration‚sedimentation‚ and distillation‚ biological processes such as slow sand filters or biologically active carbon‚ chemical processes such asflocculation and chlorination and the use of electromagnetic radiation such as ultraviolet light. The purification
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1. Introduction Plumbago zeylanica L. (Plumbaginaceae) is an important medicinal plant greatly valued in Ayurveda for treatment of cough‚ asthma and gastrointestinal disorders. In Sushrutha Samhitha it has been described as antiseptic‚ febrifuge‚ detoxicant‚ antihelminthic and considered valuable for curing migraine‚ jaundice‚ urinary calculi‚ internal abscesses‚ seminal weakness‚ vaginal discharges and insanity. In the Arabian Peninsula‚ it is mainly distributed over Oman‚ Yemen and the Southwestern
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