Investigating Stoichiometry with Carbonic Acid Salts Problem: Testing the actual yield versus the theoretical yield of NaCl when HCl is titrated into Na2CO3 and NaHCO3. When 0.15g of both NaHCO3 and Na2CO3 are titrated with HCl‚ then 0.165g of NaCl should form from the NaHCO3‚ and 0.104g of NaCl should form from the 0.15g of Na2CO3. Procedure: Weigh 2 samples of 0.15g of dried unknown each‚ and dissolve each into 50mL of distilled water. Add 0.5 to 1mL of bromocresol green indicator until the
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Title: Formation of a Salt Objective: Students will observe the reaction of NaHCO3 and HCl. Students will draw the Lewis Electron Dot Diagrams of Na+ and Cl-. Students will site examples of how to identify an ionic compound. Materials: Materials include 6M of HCl and NaHCO3 ‚ a 100 milliliter (mL) beaker‚ a 10 mL graduated cylinder‚ a dropper‚ phenol red indicator‚ distilled water‚ a hot plate‚ a balance‚ a magnifying glass‚ and beaker tongs. Procedure: First‚ measure the mass of
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If gold rust what iron will do People are born with the insatiable desire to find somebody perfect. We spend our whole lives ransacking the world for the immaculate human being who deserves our boundless reverence and whom we should emulate. We are on an unceasing quest to find our own paragon of virtue. But what a treacherous thing it is to believe that a person is more than just a person! (John Green) The inherent thing in people is that we are fallible creatures. We have unfounded high self-esteem
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Dante is so stricken by compassion at their tragic tale that he swoons once again. The episode of the two is termed as Dante’s rejection of the tenets. Dante recovers and realizes that he is in the third circle. There is a complex contrapasso‚ and the gluttons receive condemnation from all five senses. A particular shade questions if Dante knows him‚ but he does not. He was one well known for gluttony. Dante converses with the spirits‚ and Ciacco begs him to return his memory
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Anemia Iron deficiency anemia is a blood disease where your body does not have sufficient iron to make red blood cells. Red blood cells are important for the body to provide oxygen to your brain and tissues. If the body does not have sufficient iron‚ the blood provided to the brain and tissues cannot be carried efficiently. The human body normally gets iron from the consumption of high iron food‚ and or from old red blood cells. Iron deficiency anemia can occur when the body loses blood cells at
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Section Assignment 3.4 Part F – The Reaction of Iron Nails with a Copper Solution Introduction: The experiment in this activity involves the reaction between a copper (II) chloride solution with iron nails and the mole ratios involved in the reaction. Measurements are taken to determine the moles of each reactant involved in the reaction and thus the number of atoms or molecules involved. Apparatus and Materials: Refer to the reaction of iron nails with a copper solution assignment in Module
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Measurement of Iron in Foods by Atomic Absorption Spectrometry Chem 462 Abstract The purpose of this experiment is to find the amount of Fe in dietary tablets by UV-visible spectrophotometer. A Perkin-Elmer Lambda 6 UV-Visible spectrophotometer will be used for the unknown sample and the iron(II) standards. Introduction Fe3+ in a dietary tablet is converted to Fe2+ and reacats with 1‚10-phenathronile to form the tris(1‚10-phenanthroline) iron (III) complex. Hydroquinone is used as the
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right to assemble. The women’s suffrage movement of the 1910’s in the United States is a classic example of how sociological change occurs. Portrayed in Iron Jawed Angels‚ the Suffragette Movement was a complex movement within the United States that underwent the five necessary stages needed for sociological change to occur. At the beginning of Iron Jawed Angels‚ a British suffragette Alice Paul along with Lucy Paul were talking with Carrie Chapman Catt in order to receive a permit to hold a parade
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Iron Deficiency AnemiaWhat is it and what are its causes?Anemia is an insufficient amount of red blood cells in the bloodstream and iron deficiency anemia is where there is a lack of iron in the blood. You need iron in your blood to make hemoglobin‚ which contributes in distributing oxygen to tissues from the lungs. One of the most common causes of iron deficiency anemia is an inadequate intake of iron in your diet. Another possible cause of iron deficiency anemia is bleeding‚ be this because of
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Chemistry Laboratory 6A – Stoichiometric Analysis of an Iron-Copper Single Replacement Reaction Martin Sun Purpose The purposes of this experiment were to: determine the number of moles of iron reacted; determine the number of moles of copper produced; and calculate the ratio of moles of copper to moles of iron. Materials and Methods Materials and methods for this laboratory followed those laid out in Experiment 6A on pages 56-59 of Essential Experiments for Chemistry by Morrison and Scodellaro
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