involves two oxidation-reduction reactions to calculate the oxidizing capacity of a sample of unknown bleach. In order to determine the volume of Na2S2O3 added‚ students will conduct a titration of bleach with thiosulfate with addition of a starch indicator to find the end point of the titration. Moreover‚ the oxidizing capacity of bleach is calculated with the percentage by mass of NaOCl in the unknown bleach sample. The overall chemical reaction throughout the experiment will be balanced with the
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many class lab days‚ I concluded my unknown was Calcium Carbonate due to results from the Flame Test and Anion I Test. Throughout our lab days‚ my friends would help me determine various odors and colors of the substances which allowed me to confirm my answer. Also‚ I looked select test results up on the internet to see if they matched my observations. On our first lab day‚ I received my bottle and noticed a white precipitate in the bottom therefore‚ my unknown was insoluble. I started my testing
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Determine the concentration of an unknown copper (II) sulfate solution by using colorimeter Introduction: The concentration of the solution also alterations the proximity of the solution. For example‚ the more focused concentration will frame to be denser than more weakened concentration of copper (ii) sulfate. This implies there is a connection between the concentration of an solution and its absorbance. Along these lines‚ this test is set up to discover the kind of connection between the concentration
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Journal of Banking & Finance 35 (2011) 1491–1506 Contents lists available at ScienceDirect Journal of Banking & Finance journal homepage: www.elsevier.com/locate/jbf Corporate derivatives use and the cost of equity Gerald D. Gay a‚⇑‚ Chen-Miao Lin b‚ Stephen D. Smith a‚1 a b Georgia State University‚ United States Clayton State University‚ United States a r t i c l e i n f o a b s t r a c t Article history: Received 21 February 2009 Accepted 31 October 2010 Available
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0.1 Introduction Alliance Cosmetic Group (ACG) is a leading distributor of cosmetics and personal care products in Singapore‚ Malaysia‚ Indonesia and Brunei. The mission of Alliance Cosmetic Group is to be the No.1 cosmetics company in ASEAN region which is providing women opportunity to look and feel good of themselves without regardless ethnicity group or skin tone. ACG International also target can be a major player in the ASEAN region 2013. In July 2006 Alliance Cosmetic Group launched fragrance
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Conservation of Wildlife In 1936 Jay Norwood “Ding” Darling stood in Washington DC. in front of President Franklin D. Roosevelt with the idea of organizing a national wildlife conservation group. With the idea to help regulate wildlife game hunting and fishing in the United State‚ Mr. Darling convinced President Roosevelt and the General Wildlife Federation‚ later changed to the National Wildlife Federation‚ was born. Their idea was “uniting sportsmen and all outdoor and wildlife enthusiasts
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performed this test‚ the initially slant for unknown microorganism #17 is important. For this lab‚ two identical slants are used for two reasons. Firstly‚ the slant can be used to make sure that there is no contamination from the Nutrient Agar plate. Secondly‚ the second slant will become a stock culture to prevent the shortage of slants during performing the series of tests. Kliger’s Iron Agar tests can be used to determine multiple characteristics of unknown microorganism #17. Kliger’s Iron Agar slants
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Lab # 11 – Acid - Base Titration Introduction: The purpose of this lab is to determine the molarity (M) of an unknown HCl solution. A NaOH solution will be made and its molarity calculated. A sample of the NaOH solution will be titrated against the unknown HCl solution to calculated the volume needed to neutralize it. With these volumes the unknown molarity can be calculated. Theory: Solutions are made up of solvents and solutes. Materials known as acids when dissolved
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Unknown Anomaly In the not so distant future‚ humanity has expanded its reach to distant planets‚ seeking refuge from Earth’s depleted resources. Among these colonies is Terra Nova‚ a swarming settlement on the outskirts of known space. Captain Brian Laurier leads the exploration vessel‚ the Mercury X‚ on a mission to scout new planetary systems for colonization. During a routine mission‚ the Mercury X encounters a peculiar anomaly—a rift in space-time that defies all known laws of physics. Its
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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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