Barium is a soft‚ heavy‚ silver-colored metal element. This element does not have very many uses outside of the laboratory‚ but it combines easily with other chemicals to form compounds used for important industrial uses. For example‚ Barium carbonate is used in the manufacture of ceramics and special glass‚ and also to purify certain chemical solutions. It is also an ingredient in clay slurries‚ also known as water muds‚ used in drilling oil wells. Barium titanate is used in sonar detectors and
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Barium Research Paper Mr.Martin Block 1 May 18th‚ 2012 Abstract Barium was discovered in 1779 by Carl Scheele‚ but was isolated for the first time in 1808 by an English chemist by the name of Sir Humphry Davy. Barium is commonly found as BaSO4. Things that glow in the dark are made from Barium. Barium has many uses and plays a big role in our environment today. Barium can be found almost anywhere in the environment because it is produced there naturally and sometimes affects the environment
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Every step in this experiment has reasons behind its application. One determines the masses of the crucible and barium chloride hydrate for obvious data collection and calculation purposed. The heating of the sample slowly for 10 minutes is done to remove the water from the sample. A constant mass for the sample must be obtained so therefore it must be done slowly because if not you may loose mass from the sample. At the point where the crystalline solid changes to a powdery solid the sample must
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Barium Swallow A Barium swallow is a radiography contrast technique performed to visualize the esophageal portion of the Upper Gastrointestinal tract. Contrast Medium is taken orally and the lumen of the Esophagus is fluoroscopically visualized. Standard X-ray films are normally taken prior to administration of the contrast medium and these are useful in detecting perforation‚ presence of radiopaque foreign substances and gastric wall thickening. Oral contrast mediums‚ such as barium sulfate highlight
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NR 224 Final Exam Blue Print October 29‚ 2012 session Infection Control- chapter 28 Personal protective equipment and indication for use Gowns: prevent soiling clothing during contact with patient Masks: should be worn when you anticipate splash or spray of blood or body fluid and satisfy droplet/airborne precautions. Protective eyewear: should be worn for procedures that generate splashes or splatters Gloves: prevent the transmission of pathogens by direct/indirect contact. This equipment
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quantitatively as barium sulphate‚ BaSO4‚ by gravimetric analysis. For the experiment‚ a dilute solution of barium chloride was slowly added to a hot unknown sulphate solution slightly acidified with concentrated HCl. The precipitate is then filtered off by suction filtration‚ washed with water and dried in the oven at 150 degree Celsius for about half an hour and cooled in the desiccator‚ and weighed as barium sulphate and the percentage of sulphate was calculated from the weight of barium sulphate. The
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w w ap eP m e tr .X w Paper 3 Practical Test CONFIDENTIAL INSTRUCTIONS 5070/03 May/June 2004 Great care should be taken that any confidential information given does not reach the candidates either directly or indirectly. INSTRUCTIONS TO SUPERVISORS Teachers responsible for the examination are NOT allowed to consult the question paper before the day of the examination. However‚ they are asked to carry out a titration between solutions P and Q‚ to ensure that the concentrations
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NaNO3 Sodium Na+ Yellow Sr(NO3)2 Strontium Sr2+ Red KNO3 Potassium K+ Violet Ba(NO3)2 Barium Ba2+ Yellow-Green Cu(NO3)2 Copper Cu2+ Blue-Green LiNO3 Lithium Li+ Deep Red Ca(NO3)2 Calcium Ca2+ Orange-Red Unknown Orange-Red Conclusions
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Lab Write Up Pre-Lab Questions: 1. What precipitation reaction could be used to separate and remove silver ions from a mixture containing iron (III) and zinc ions? A precipitation reaction that could be used is hydrochloric acid Ag+(aq) + HCl(aq) AgCl(s) +H+(aq) – white. 2. What precipitation reaction could be used to separate and remove iron (III) ions from the remaining mixture containing iron (III) and zinc ions? Fe3+(aq) + 3NaOH(aq) Fe(OH)3(s) + 3Na+(aq) 3. How can the presence of silver
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sodium bicarbonate throughout the world from multiple plants in the United States and Brazil. Their subsidiary in Brazil also manufactures various inorganic chemicals‚ such as sodium sulfide‚ sodium sulfite‚ sodium metabisulfite‚ barium carbonate‚ barium sulfate and barium chloride. Environmental Scan: An external scan of their environment showed that one opportunity available
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