The purpose of this lab was to get used to using lab machinery such as the spectrometer. Spectroscopy is the interaction of matter and electromagnetic radiation. Most of our lab was based on the idea that matter would absorb and then reflect the colors we wanted to see based on the dyes we used. We also tested how strong the dyes were by testing them on filter paper and seeing how far they would travel up the paper. During dry lab we put all the classes’ data together to get accurate absorbance averages
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Define the following terms and use them in your answers below. - Solubility: The greatest quantity of a solute that can be dissolved into a solvent - Soluble: When a substance can be dissolved into a solvent. Ex: sugar can be easily dissolved into coffee or tea. - Insoluble: When a substance cannot be dissolved into a solvent. Ex: oil cannot be dissolved into water. - Hydrophilic: Describes a substance that can easily be mixed or dissolved into water. Ex: salt - Hydrophobic: Describes
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background knowledge, I know that there are stomach acids in our stomach that help dissolve food, which exemplifies how this acid requires high solubility in order to whole and dissolve all the food we eat. Changing the potential hydration of an aqueous solution, “you can change the charge state of the solute” [4]. By changing the charge state of a solute, it is possible to convert molecules to having no net electrical charge and having decreased electrical charge “the solute has minimal solubility” [4]
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the solutions and collecting data, the solution most similar to the test solution in concentration is Solution A. According to my data, Solution B, C, and D all lost mass (grams) while Solution A’s mass increased. Informed by this data, the mass change should be positive in order to match the test solution. Due to the exposure of the hypotonic solution in Solution A, the potato increased from 2.71 ± 0.01 grams to 3.01 ± 0.01 grams. Through osmosis, the water molecules moves from the solution into
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The purpose of this experiment is to find the unknown concentration of two different proteins; the gamma globulin, and the bovine serum albumin. The measurement is done in the spectrophotometer by using the method of the Bradford Essay with the Coomassie Brilliant Blue G-250 dye, as a reagent. To identify the unknowns, first a colorimetric assay of both proteins with known concentrations is executed, and the data in plotted in two standard curves respectively. Finally, the unknown absorbance measurements
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pipets of cooked starch and amylase will diffuse through their dialysis bag into the beaker containing 2/3 water and four pipets of Lugol’s solution. Thus being stated, the null hypothesis would be, the four pipets of cooked starch and amylase will not diffuse through their dialysis bag into the beaker containing 2/3 water and four pipets of Lugol’s solution. In order to test our hypothesis, I set up a control beaker (Beaker
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away from the NaCl solution in every scenario, leading to the conclusion that it has the highest water potential of the solutions tested. Because a greater proportion of water diffused away from the sucrose than the glucose, it can be hypothesized that the sucrose has a lower water potential than glucose. Because water diffused to the glucose and away from the 5% ovalbumin solution, we can also hypothesize that the glucose has a lower water potential than the 5% ovalbumin solution. In order from greatest
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company providing web development, website design, Seo, Mobile Application, Internet marketing services. Clag Tech is leading IT Company for software solutions and provides top quality solution to their domestic and international clients. Our core motive is to become the appropriate IT partner for its customers by delivering them the best solutions, which are suitable for their requirements. We are well versed with the software product engineering life cycle and provide technical and functional resources
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Lantek Expert III, an integrated ERP solution aimed at companies operating in the metal and sheet metal, profile and tube processing sector. Lantek, a multinational leader in CAD/CAM software applications, has more than a decade’s experience in developing business management solutions, an area that it is currently booming and in which it is extending its international expansion strategy, in order to establish itself as one of the main world suppliers of ERP solutions for the sheet metal market. In this
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the following solutions? a) 25.2 g of a 4.25 % w/w solution of glucose 25.2 g solution x 4.25 g solute = 1.07 g solute 100 g solution b) 125 g of a 6.55% w/w solution of sodium sulfate 125 g solution x 6.55 g solute = 8.19 g solute 100 g solution 7.3 How many grams of KHCO3 must you add to 250 mL of water to prepare a 0.600% w/v solution? 0.600% w/v solution means grams of solute = 0.600 g = 0.006 mL of solution 100 mL
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