1. Which layer will be the aqueous layer when using dichloromethane (methylene chloride) as the solvent (i.e.‚ top or bottom)? Which layer will be the aqueous layer when using ether as the solvent? 2. When everything has been separated in Part D‚ which compounds will be in test tubes 1‚ 2‚ and 3? 3. The partition coefficient of benzoic acid is 3 in dicholormethane (methylene chloride) with respect to water. If 6 grams of benzoic acid is dissolved into 600 mL of water
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After the purification‚ the ester yield synthesised is only 67%-70% and a maximum 70% yield of ester usually is not considered to be acceptable for a synthesis reaction‚ instead it is considering as a poor yield of ester. The synthesised ester can only have a maximum yield of 70% because for ester in which the carboxylic acid and alcohol are sterically unhindered‚ a same ratio mixture of carboxylic acid and alcohol can only synthesis ester with a maximum yield of 70% ester as the reaction with the
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gap metabolic acidosis (Hyperchloraemic) Causes include: GI or renal loss of bicarbonate‚ but re-absorption of excess chloride‚ i.e.‚ (GI fluid is rich in bicarb). A useful mnemonic is DURHAM Diarrhoea Ureteral diversion into sigmoid colon Renal Tubular acidosis Hyperalimentation Acetazolamide Miscellaneous condition: pancreatic fistula‚ cholestyramine‚ calcium chloride ingestion Increased anion gap metabolic acidosis Main causes include: DKA‚ lactic acidosis‚ renal failure‚ toxic
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Complete Solutions Manual GENERAL CHEMISTRY NINTH EDITION Ebbing/Gammon David Bookin Mt. San Jacinto College Darrell D. Ebbing Wayne State University‚ Emeritus Steven D. Gammon Western Washington University HOUGHTON MIFFLIN COMPANY BOSTON NEW YORK Vice President and Executive Publisher: George Hoffman Vice President and Publisher: Charles Hartford Senior Marketing Manager: Laura McGinn Development Editor: Kate Heinle Assistant Editor: Amy Galvin Editorial Assistant: Chip
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Reaction Types In this lab we were give 9 different elements and had to determine if they were Single Displacement‚ Double Displacement‚ Synthesis‚ Decomposition and Combustion. A.) Aluminum and Copper (II) Chloride‚ my hypothesis is a Single Displacement. B.) Calcium Carbide and Water‚ my hypothesis is a Double Displacement. C.) Zinc and Hydrochloric Acid‚ my hypothesis is a Single Displacement. D.) Alcohol and Oxygen‚ my hypothesis is a Combustion. E.) Lead (II) Nitrate and Potassium Iodide
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Aim: 1. Find out which substances are essential for rusting to occur. 2. Find out how the rusting process can be inhibited and how it can be promoted. Hypothesis: I predict that air (oxygen) and water are necessary for iron to rust. The nail in water with air will rust while the nails in dry air and in boiled water with no air will not. I also predict that galvanizing the nail with zinc and greasing the nail and painting the nail and electroplating the nail will inhibit rusting. I also predict
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zinc chloride solution. pentahydrate distill water 0.1 g of ammonium dichromate phenolphthalein tongs strip of magnesium spatula NaOH HCl sodium nitrate potassium chloride. magnesium
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decomposition reaction is Calcium carbonate calcium oxide+ carbon dioxide Single displacement is the replacement of one element with another in a compound. One of the elements is one of the reactants‚ and a metal replaces a metal or a non-metal replaces a non-metal. Eg. Magnesium + zinc sulphate = magnesium sulphate + zinc Double displacement is the swapping of elements‚ usually forming a solid. Eg. Lead nitrate + sodium chloride = sodium nitrate + lead chloride Neutralization is
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4A.2 RRL 4A.2.1 Coagulation of Proteins Coagulation of protein refers to sticking together‚ like a blood clot‚ usually as a result of denaturation or coming out of solution due to abnormal ionic strength or a change of solvent. Definite characteristics of the proteins are changed when they are coagulated‚ among which is loss of solubility in water and dilute salt solutions. In some instances and under certain conditions the coagulation process may be reversible. (Campbell‚ et.al‚ 1979) 4A.2.2
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Assessment Item 14 Beaudesert State High School An Investigation into the Roles of Nitrogen and Phosphorous in the Growth of a Wheat Crop By Alannah Hardgrave [pic] Table of Contents • Summery – Page 3 • Aims of Trial – Page 4 • Review of Literature – Page 5 • Method and Materials – Page 6 • Results – Page 9 • Discussion – Page 12 • References – Page 14 [pic] Summary This report was composed
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