CLASSIFICATION TESTS A. Acids There are relatively few suitable tests for carboxylic acids. Classification is based mostly upon solubility tests. If the compound is water soluble‚ test the aqueous solution of your compound with pH paper (also check the pH of the original water). If the compound is water-insoluble and it dissolves in 5% (1.5M) sodium hydroxide and 5% NaHCO3 solutions as performed in your solubility tests‚ it can be classified as a carboxylic acid. Establish an equivalence value
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Enzymes Research Enzyme optimum temperature The graph on the left compares enzymes activity with the temperature the enzymes are in. The optimum temperature for enzymes is 40 degrees but anywhere above that temperature the enzymes activity rapidly decreases because the enzymes denatures. Enzyme optimum pH This graph compares
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Product Proposal I. Calamansi Jam Calamansi Jam is a fruit spread made from pure and natural calamansi extracts and sugar. It is very nutritious and contains Vitamin C that can be of great help to our immune system. This product is delicious and at the same time good for our health. II. Related Product Introduction Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin‚ and contains essential nutrients
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It is ‘thiazolidine-2‚4-dione’ and not thiohydantoins as the reaction product of monosubstituted thioureas and chloroacetylchloride a a a a a The reaction products of monosubstituted phenylthioureas with chloroacetylchloride in a polyethylene glycol (PEG-400) medium and K2 CO3 as base/catalyst at an elevated temperature are exclusively thiazolidine-2‚4-diones and not thiohydantoins as has been reported. The core unit thiazolidine-2‚4-dione is essentially derived from chloroacetylchloride
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Page 1 of 10 5.111 Principles of Chemical Science EXAM # 3 ============================================================================ Write legibly your name and your TA’s name below. Do not open the exam until the start of the exam is announced. The exam is closed notes and closed book. You have 50 minutes (1 academic hour) to complete it. ● Read each part of each problem carefully. ● Write your answers legibly in the corresponding spaces of the attached sheets. ● For problems requiring
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Box-Jenkins Modeling and Forecasting of Monthly Electric Consumption of PANELCO III Customers ______________________________ A Special Problem Presented To The Panel of Evaluators Mathematics Department Pangasinan State University Urdaneta City _______________________________ In Partial Fulfillment of The Requirement for the Degree of Bachelor of Science in Mathematics Major in Statistics ______________________________ By: Jake Anthony E. CantubaMarch 2014 APPROVAL SHEET In partial
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Research for Kinetics Coursework http://www.google.co.uk/#sclient=psy-ab&hl=en&rlz=1R2ADRA_enGB386&source=hp&q=An+investigation+into+the+kinetics+of+the+reaction+between+potassium+peroxodisulphate+and+potassium+Iodide&pbx=1&oq=An+investigation+into+the+kinetics+of+the+reaction+between+potassium+peroxodisulphate+and+potassium+Iodide&aq=f&aqi=&aql=1&gs_sm=e&gs_upl=4649l5023l3l5663l2l0l0l0l0l0l0l0ll0l0&rlz=1R2ADRA_enGB386&bav=on.2‚or.r_gc.r_pw.&fp=4cbda8eccdfde5e1&biw=1280&bih=600 http://www.chemistry-react
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TITLE: THE EFFECT OF HEATING DIFFERENT SUBSTANCES INTRODUCTION: In this exercise‚ it was required to observe carefully what happened when certain substances were heated in a burner‚ and to note the appearance of the residue after heating. AIM: To observe the effects of heating different substances. MATERIALS: Hard glass test tubes Powered samples of Lead (II) nitrate Copper (II) sulphate Ammonium chloride Zinc sulphate Basic copper (II) carbonate‚ CuCO3. Cu(OH)2
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Name‚ Date‚ Hour Lesson Objective: Key Vocabulary: Lesson pH and dilutions Science Starter: Determine the pH of .0103M H3PO4 solution in water. Remember to look at the H+ count. Box 1 In a dilution‚ the number of solute particles does not change‚ just the concentration with respect to the volume. This relationship is _____________________ proportional. Initially‚ there is 275mL 0.125M stock solution of a substance. -Determine the amount of moles of solute present. -What is the concentration
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HW: p.491(1-7) 1. Compare the general properties of acids with the general properties of bases. Acids: Aqueous solutions of acids have a sour taste. Acids change the color of acid-base indicators. Some acids react with active metals and release hydrogen gas‚H2. Acids react with bases to produce salts and water. Acids conduct electric current. Bases: Aqueous solutions of bases taste bitter. Bases change the color of acid-base indicators. Dilute aqueous solutions of bases feel slippery
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