Experiment 2 Preparation of Primary Standard solutions and Standardizing Acid and Base solutions Objectives: The objective of this experiment is: 1- To prepare two primary standard solutions‚ KHP and Na2CO3 2- To standardize a sodium hydroxide solution using the prepared primary standard KHP. 3- To standardize a hydrochloric acid solution using the prepared primary standard Na2CO3. 4- To calculate the concentration of an unknown acid or base. Introduction A primary standard is a standard that
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Primary sector of the economy The primary sector of the economy is the sector of an economy making direct use of natural resources. This includes agriculture‚ forestry and fishing‚ mining‚ and extraction of oil and gas. This is contrasted with the secondary sector‚ producing manufactures and other processed goods‚ and the tertiary sector‚ producing services. The primary sector is usually most important in less developed countries‚ and typically less important in industrial countries. The manufacturing
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Philosophy Patch Adams: Primary & Secondary Reflection The movie Patch Adams is a true to life story of Dr. Hunter “Patch” Adams. The movie tells a lot of truth about life with depth. And all throughout the movie there are scenes that show both primary and secondary reflection. Primary Reflection is superficial‚ shallow and it reduced the person to details. The person is considering being an object
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The observation of teaching at a local primary school provided me with an opportunity to watch how teachers interact with their students. I could see that teaching methods are becoming more diverse nowadays and multimedia is integrated into classrooms. Some teachers still put emphasis on rote learning by asking students to repeat words and sentences over and over again‚ while others adopted more dynamic approaches such as teaching through role play and group discussion. Teaching mathematics with
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Protein Structure on a Tertiary Level The third of four levels of protein structure is the tertiary level. The primary level are strands of the 20 amino acids‚ the secondary level are alpha helix and beta pleats‚ the tertiary level are a combination of helix‚ pleats‚ and bends‚ and the quaternary level involves multiple polypeptide bonds. The tertiary level is a three dimensional level that allows the protein to be fluid and move and make up the R group in the protein structure. There are four
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University of phoenix Short essay question Occriss Hayward HCS 325 2/21/2012 Ramona Mulleins In this essay the author will be explaining how to be ethical as a healthcare manager. In this healthcare facility a research university wants to do research on the patients. In order to do this research the facility must give out patients files for specific diagnosis and population. This manager does not want any of their patients to be exploited and says no. The author will be explaining why this
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1. Do you think the primary cause of the failure of the two companies that led to the bailout was a management failure‚ a worker failure‚ a shareholder or customer failure‚ some other reason‚ or a combination of the above? Why is that the case? General Motors was founded by William “Billy” Durant on September 16‚ 1908 and has several brands under names such as Chevrolet‚ Cadillac‚ and Buick. Chrysler was founded by Walter Chrysler in 1925 and it also has many brands such as Jeep‚ Dodge‚ Ram‚ and
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options depending on circumstances. The table or flow chart should be submitted as part of your document. You may not submit a separate file Unshielded twisted pair Fiber optic Coaxial cable Medium Length Baseband: 10/100/1000mbps (CAT 3/5/5e/6) EMI Wavelength (nm): 850/1300 RG Type RG58BU/CU RG59/BU Protection: Shielded/Unshielded
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with other components of marketing mix to gain edge over competitor is called Integrated Marketing Communication. Reasons for the Growing Importance of IMC: Several shifts in the advertising and media industry have caused IMC to develop into a primary strategy for marketers: 1. From media advertising to multiple forms of communication. 2. From mass media to more specialized (niche) media‚ which are centered
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1. Standarization of NaOH with Potassium Hydrogenphthalate (KHC8H404) The hygroscopic nature of NaOH requires its solution to be standardized with a stable primary standard such as potassium hydrogen phthalate. The exact molar concentration of NaOH solution can then be accurately determined. 1.1) Prepare the stock NaOH solution by dissolving about 4 g of NaOH pellet in 100 mL of deionized water. Note that NaOH is a hazardous chemical which is corrosive to skin and irritant to eye‚ be cautious and
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