Abstract The objective of this experiment was to observe multi-step purification of benzoic acid after performing the extraction from a mixture containing benzoic acid‚ cellulose‚ and methyl orange. Recrystallization was done to remove impurities from the sample. The amount of BA recovered during recrystallization is much less than the extracted amount of BA. The difference between the pure and impure samples was observed by comparison of melting points. It was found that impure samples will have
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Part A: Table 1: Fractionation of amino acid Fraction No | Response to Ninhydrin test(level of blue colour change) | Response to Sakaguchi test (colour change) | 1 | X | yellow | 2 | Dark blue | yellow | 3 | Dark blue | Pale orange | 4 | Blue | Pale orange | 5 | Pale blue | Pale orange | 6 | Blue | Pale orange | 7 | Pale blue | Pale orange | Discussion Part A In the separation and purification of a single protein or amino acids‚ a solution containing the desired analyte
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PRELIMINARY INVESTIGATION REPORT: Web Based Payroll System for Richville Corporation Tower Introduction The researchers aim to develop a Web Based Payroll System that use manual payroll system. The proposed system is an online access of payroll system which means it needs to have an internet connection to run the program. It includes any and all types of financial statements that involve the payment of an employer’s employees‚ as well as any statements that relate to the filing of employment taxes
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We have been studying cell division and cancer cells in class. At the beginning of the investigation‚ we knew how cells divided and symptoms for evidence of cancer. We also knew the process of cell reproduction as well as the cell cycle. My goal for this investigation was to use my knowledge to determine which patients if any had cancer. The guiding question was “Which Patients Could Have Cancer”. This question was related to the information we had been studying‚ because we had been studying cancer
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Exercise 10 Acid/Base Balance NAME 1. Match each of the definitions in Column A with the appropriate description in Column B. Column A Column B F 1. pH E 2. acid D 3. base A 4. acidosis B 5. alkalosis C 6. carbon dioxide a. condition in which the human body’s pH levels fall below 7.35 b. condition in which the human body’s pH levels rise above 7.45 c. mixes with water in the blood to form carbonic acid d. substance
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Locard’s Exchange Principle and the use of Fingerprints: Edmond Locard (1877-1966) was a French scientist specialised in both medicine and law. Inspired by the work of Hans Gross‚ it was Edmond that created the concept that all objects of any material should leave traces of itself upon whatever it touches‚ even if it is the minutest amount‚ simply put as “Every Contact leaves a trace‚” Locard (1923). This is commonly known as Locard’s Exchange Principle. He believed that in circumstances such as
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Arson investigation is a part of the more complicated science of fire investigations. The job of an arson investigator is to figure out if a fire has been intentionally set and how it started. I chose an arson investigator as a career is because my father has had over 25 years in this career and I am very interested in the career and it’s what I want to start pursuing after high school. You’re required to have a high school diploma or a G.E.D. and 5 years or more work experience in a related job
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Determination of the ASA Content of Aspirin Due Date: September 16‚ 2013 Experiment#: 2b Title: Determination of the ASA Content of Aspirin Aim: To determine the Molar Concentration of NaOH and HCl acid used in their Standardization processes and to determine the acetylsalicylic acid (ASA) content in Aspirin. Materials/Apparatus: materials used are the same as that outlined in the laboratory procedure prepared by the laboratory instructor. Procedure: The procedure used is the same as
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Unit 8 Essay Malcolm Johnson Fraud Investigation CJ125 Prof. Ayers 9/23/2012 Fraud Examination and auditing are very much related‚ but is not the same thing. Because most occupational frauds are financial crimes‚ there is necessarily a certain degree of auditing involved. A fraud examination involves a lot more than just a review of financial records. Other than a review of financial information a fraud investigation involves interviews‚ statement analysis‚ and also public record searches
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Alanine (ala‚ A) (neutral‚ non-polar) Arginine (arg‚ R) (basic‚ polar) Asparagine (asn‚ N) (neutral‚ polar) Aspartic Acid (asp‚ D) (acidic‚ polar) Cysteine (cys‚ C) (neutral‚ slightly polar) Glutamic Acid (glu‚ E) (acidic‚ polar) Glutamine (gln‚ Q) (neutral‚ polar) Glycine (gly‚ G) (neutral‚ non-polar) Histidine (his‚ H) (basic‚ polar) Isoleucine (ile‚ I) (neutral‚ non-polar) Leucine (leu‚ L) (neutral‚ non-polar) Lysine (lys‚ K) (basic‚ polar) Methionine (met‚
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