Experiment 5 Titration of a Strong Acid with a Strong Base Part I: The purpose of this experiment was to prepare an aqueous solution of NaOH, and to determine the concentration of the secondary standard NaOH solution by titrating it with a solute of primary standard, KHP. Another objective of this experiment was to learn how to plot a 2nd derivative graph using LoggerPro, and determining the concentration of the secondary standard from the 2nd derivative data. The primary standard was
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Analyzing an Acid Spill Background Information : Sulfuric acid is a dense, colourless, oily, corrosive liquid that is soluble in water prepared industrially by the reaction of water with sulfur trioxide. The formula H2SO4, displays that there are two hydrogen atoms and one sulphate polyatomic ion. Sulfuric acid has a pH level of 1, which means it is extremely acidic and has a large amount of H+ ions. It is widely used in the manufacture of chemicals, like in making hydrochloric acid, nitric
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tomato sauce1:1 ratio of NaOH to H+ ions So 4.286171391x10-4mols of H+ titrated against Mol of H+ ions in 1g:3.559943016x10-4 mols/ 1gCitric acid ionisation gives:3.559943016x10-4mol = 1.186647672x10-4 mols citric acid in tomato sauce 3 Grams of citric acid: 1.186647672x10-4 mols* 192.124g/mol= 0.022798336g citric acid/ 1 gram tomato sauce | Appendix 3: Relative precision of standardisation of NaOH:20.0-19.7=1.5 2 1.5*100 = 7.563025211%19.83333333Relative
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repeated measurement of the volume that it delivers. The second part of the experiment requires that you determine the concentration of an unknown solution of phosphoric acid, using a sodium hydroxide solution of known concentration that is provided to us. In the third part, we are required to prepare a solution of hydrochloric acid and measure its concentration(standardization)by titration with sodium hydroxide solution of known concentration using neutral indicator. Materials Equipments: analytical
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The solution was heated to an internal temperature between 75 and 85°C. 0.9 mL of the S-(-)-α-phenethylamine (d=0.94g, 6.981 mmol) was added to the solution. Precipitation was formed. Heat was maintained between 75 and 85°C for one hour while stirring. After a hour, it was removed from heat and allowed to cool to room temperature. The salt was collect by vacuum filtration. Melting point was determined (167-173
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Butternut Squash Chipotle Chili This hearty chili is a little spicy and a little sweet. It’s absolutely perfect for serving at game-day watch parties, since it’s gluten free, vegan, and satisfies conventional carnivore taste buds too. In summary, this chili makes everyone happy! This recipe is one of the most popular recipes on my blog, and readers report that it has won more than a few chili cook-offs. MAKES 5 TO 6 HEARTY BOWLS 2 tablespoons extra-virgin olive oil 1 medium red onion, chopped 2 red
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It is important to have amino acids and proteins in your body with any diet. Essential amino acids are those supplied by the diet, since the human body either cannot make them at all or cannot make them in sufficient quantity to meet its needs.Because your body needs amino acids for healthy nerve and brain functions and also for remolding muscles and bone tissues to function properly. If you don’t get enough amino acids it will result in degradation of the body’s proteins your body will pull it
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Biologically Important Molecules, Carbohydrates, Proteins, lipids and Nucleic Acids Tiffany Osbey Jackson State University Lab Report Authors: Tiffany Osbey Portia Mcmlertrey Jamia Ransome Darrius Bryant Abstract: Organic molecules are those primarily made up of carbon, hydrogen and oxygen. The common organic compounds of living organisms are carbohydrates, proteins, lipids, and nucleic acids. Each of these macromolecules (polymers) are made of smaller subunits (monomers). The bonds between
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Acid Rain --------- Acid Rain is caused by pollution containing sulfur dioxide, nitrogen oxide, and ozone ( SOý, NOx, and Oý ) is released into the air. These chemicals are absorbed into clouds and results in Acid Presipitation ( Acid Rain, Acid Snow, Acid Hail, Acid Sleet ). When the chemicals aren't absorbed into clouds, they can drift for miles and fall to the ground, resulting in Acid Deposition, or dry deposition. When Acid Rain falls
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e c t io n 1 E Material Safety Data Sheet Citric acid MSDS Section 1: Chemical Product and Company Identification Product Name: Citric acid Contact Information: Catalog Codes: SLC5449, SLC2665, SLC4453, SLC1660, SLC3451 CAS#: 77-92-9 Sciencelab.com, Inc. 14025 Smith Rd. Houston, Texas 77396 RTECS: GE7350000 US Sales: 1-800-901-7247 International Sales: 1-281-441-4400 TSCA: TSCA 8(b) inventory: Citric acid Order Online: ScienceLab.com CHEMTREC (24HR Emergency
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