Barium

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    the side form Part A was identified to contain either calcium or barium. Part C explored a different method through the use of cation flame tests to observe colored flames from six metal chloride solutions. In Part A, the initial step was to add HCl to the unknown sample. This was necessary because hydrochloric acid helped separate the cations, which is what was needed in order to distinguish the lead or silver from the calcium or barium. It did this because the chlorine ion of HCl was able to…

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    Essay On Baria Swallows

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    Modified Barium Swallow Modified Barium Swallows also simply deemed MBS’s are fluoroscopic procedures used to determine the underlying cause of impaired swallowing (dysphasia). The Modified Barium Swallow study will help determine a treatment option for people who are having difficulty swallowing or aspirating. The procedure is painless and not at all time consuming. The study consists of swallowing different consistencies of a radiopaque agent called Barium and at the conclusion of the exam…

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    is 233.39 amu or g/mol. Barium has an atomic mass of 137.33 amu or g/mol and there is only one atom of barium, so the atomic mass of barium in barium sulfate is 137.33 amu or g/mol. Sulfur has an atomic mass of 32.06 amu or g/mol and there is only one atom of sulfur so the atomic mass of sulfur in barium sulfate is 32.06 amu or g/mol. Oxygen has an atomic mass of 16.00 amu or g/mol and there are four atoms of oxygen in barium sulfate, so the atomic mass of oxygen in barium sulfate is 64.00 amu…

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    Sulfate Experiment

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    Summary The goal of the experiment was to determine weight % of sulfate inside an unknown sample compose of Na2SO4. The sample was dried, weighed and dissolved in water and hydrochloric acid. Barium chloride was then added in excess to drive the precipitation process to completion. Heat was use to digest the precipitate before it was filtered through an ashless filter paper and ignited to constant weight. From mass of the sample and mass of the precipitate, the percentage of sulfate in the…

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    reacts with the hydrochloric acid to form zinc chloride and hydrogen gas (equation 10). For the first double replacement reaction, barium nitrate Ba(NO3)2 is combined with sodium hydroxide NaOH. During the reaction, the mixture is cloudy and white while there are small particles of precipitation in the solution of the test tube. After the reaction, the mixture of barium nitrate and sodium hydroxide remains cloudy and the precipitation is…

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    The unknown compound was composed of small, white crystals as shown in picture 1. The compound was completely odorless, which was tested by simply smelling the compound. Picture 1 (Unknown Compound): The solubility test of the unknown compound determined that the compound was soluble in water (H2O). The other known salts that were tested that were also soluble were all of the sulfates and NaCl. These were the only salts tested, because before this experiment it was determined by the flame test…

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    Iodine 123 Research Paper

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    contraindication of contrast media In the radiation they are using many tints , e.g. barium also We are using in the nuclear medicine and it’s called radiopharmaceuticals such as Carbon-11 , Chromium-51 , Fluorine-18FDG , Gallium-87 , Gallium-86 citrate , Technetium-99 , Iodine-123 and Iodine-131 . there are all these different uses pigments have benefits and harm . Firstly , we will talk about Iodine-123 is used to diagnoses the patients . It use for routine scan the time of…

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    Lab Report Cation Essay

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    order to confirm its presence in the solution. In the second part of the experiment, qualitative methods were used again to determine the identity of the other cation in the original aqueous solution of the first part. The cation was to be either barium or calcium. In this part, a false positive…

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    Chloride Anion Tests

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    sulfate test the unknown solution, potassium sulfate, and combining it with hydrochloric acid and barium chloride. If a sulfate anion was present in the unknown solution, then the anion would combine with the barium and form the precipitate, BaSO4, and the chlorine ion would combine with the unknown’s cation. In this case a sulfate anion was present in the unknown so the sulfate combined with barium in the form of a precipitate, and the potassium combined with the chloride ion as an aqueous…

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    of the Dallas Police Department subjected him to a paraffin test, where warm paraffin wax was applied to Oswald’s hands and right cheek and was allowed to cool as it extracted contaminants from his pores. If Oswald had been the shooter, traces of barium and antimony within his pores would have been present, however, while Oswald’s hands show high quantities of their traces, his cheek did not show any condemning…

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