In this experiment‚ gravimetric analysis will be used to determine the unknown metal carbonate. Gravimetric analysis. Gravimetric analysis is a method where an ion being analyzed can be classified through their mass (Yoder 2018). Due to the fact that carbonates can be hygroscopic‚ which means it would be able to absorb water from water vapor‚ extra precautions have to be taken place to be able to get an accurate mass (Helmenstine 2017). This can be done by using a drying oven and a desiccator. A
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Thin Layer Chromatography of Unknown Samples and Paprika By: Uyen Huynh Date: June 18‚ 2014 Lab Partners: Philip Murray Professor and section: M. Pandey‚ CHM2210L.601 Data: Analysis of Drug Store Items Knowns Rf Values Aspirin .91 cm Acetaminophen .85 cm Ascorbic Acid .86 cm Unknown .97 cm Identity of unknown mixture Acetaminophen Analysis of Paprika Pigments Spot Number Rf Color 1 1 Red-orange 2 1 Red-orange Calculations
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Lab 5 The Diffraction Grating Chinua McDonald Objective: To measure the wavelength of light with a diffraction grating. Theory: The two types of diffraction gratings are the transmission and reflection gratings. They are made by ruling on a piece of glass or metal a number of evenly spaced lines with a fine diamond point. Diffraction phenomena can be analyzed in terms of Huygens’ principle‚ according to which every point on the wave front of a wave should be considered as a source
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20th century. Educated at Oxford‚ he attracted attention as a prominent member of a group of young leftist writers who generally expressed a socialist viewpoint. The poem I have chosen for this essay is "The Unknown Citizen". I felt the time period reflected W.H. Auden’s views‚ making the unknown citizen an example of the government’s view of the perfect modern man in an overrated unrealistic society.<br><br>In the time period that he wrote this poem in the late 1930’s America was going through tremendous
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you thought you knew.....their name! That ought to do it and give you some idea. You can include things like their hobbies. Get then to draw a picture and say the artist extraordinary of this masterpiece....you know just go crazy with little unknown facts and get that A! An introduction is usually given when you meet new people. A typical sample of an introduction would be‚ " Hello‚ my name is John‚ nice to meet you!" Friends‚ professors‚ administrators‚ and parents‚ welcome. We are graduating
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Preliminary Unknown Report Alexis Grettenberger 800503431 Katie Young Alexis Grettenberger Biol 311 Lab 11/21/14 Preliminary Unknown Report Purpose: The purpose of this experiment was to identify a specific unknown bacterium that was isolated from a multitude of bacteria in a sample of contaminated dirt by running it through a series of identification techniques. Some of these techniques were simple staining‚ gram staining‚ and isolation techniques. The hypothesis of this experiment was that
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Carlie Haeffner Qualitative Analysis March 20‚ 2015 The purpose of this lab is to identify unknown ions in a solution by using a type of chemical reaction called precipitate reactions. The key to finding which ions are present in a solution is to form a precipitate which makes the ions “come out” in a reaction (McNeil‚ 2013-2014). Water is used in these experiments to act as a solvent. Since water is a polar molecule‚ the slightly positive and negative charges will sometimes pull apart molecules
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Thin Layer Chromatography of the Unknown Analgesic Jessica Bajao*‚ Phoebe Abalos‚ Kevin Antiga‚ Carmelus Aseneta 3-Biology 2 College of Science‚ University of Santo Tomas‚ Manila‚ Philippines Abstract The group used five different analgesics in this experiment: aspirin‚ acetaminophen‚ ibuprofen‚ caffeine‚ and mefenamic acid. Six analgesics were spotted on the TLC plate including the unknown. After the development of the TLC plate‚ it was placed under ultraviolet light for the spots resulted
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Fear of the Unknown Lord of the Flies By: Sam Baldwin 2012-05-22 Ms. Reis ENG30S Fear is one of the most powerful emotions that control the way any human being acts in certain circumstances. A distressing emotion aroused by impending evil and pain‚ whether the threat is real or imagined is described as fear. One of many prominent themes in William Golding ’s novel‚ the Lord of the Flies‚ is Fear of the unknown. From the beginning of the novel‚ the boys fear what they cannot see‚ the parts
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There are times in one’s life that they can look back upon and be truly proud of themselves. Laying the wreath at the Tomb of The Unknown Soldier is one of those opportunities. Not only does one get to honor all who have fought and died for this country‚ but they get to do it in a way that is remembered and cherished for the rest of their lives. And honoring these soldiers allows one to do something greater than just in their town‚ something greater than in their school‚ and something so great‚ that
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