The unknown carboxylic acid’s melting point was 108°C according to the Mel-Temp machine. The melting point is the temperature at which a solid precipitate changes into its liquid form upon heating. The melting point of benzoic acid‚ the aromatic carboxylic acid was 122°C. Thus‚ the product contained impurities which caused the solid to melt at a lower temperature than the actual temperature. Pure solids typically melt at higher temperatures while impure solids melt at lower temperatures. This is
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in the War In the poem‚ “The Unknown Citizen‚” a short eulogy is presented at a funeral for an unidentified soldier. When providing details about the citizens life‚ the speaker instead uses impersonal facts and government based statistics‚ rather than intimate components about who the soldier was personally. The author also displays the tone of the poem as lighthearted‚ making the speaker seem untroubled about the death of the soldier. In W.H Auden’s poem‚ “The Unknown Citizen‚” the author uses his
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Purpose: The purpose of this was to determine the concentration of sodium carbonate in an unknown sample by titration. The solution of hydrochloric acid was prepared and standardized using Na2CO3. Observations: Week 1: Standardizing hydrochloric acid using sodium carbonate with bromocresol green indicator Table 1: Titration of sodium carbonate using hydrochloric acid Trial | Mass of Na2CO3 (g) | Burette Reading (mL) | Final Volume of HCl (mL) | | | Initial | Final | | 1
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Purpose: To identify an unknown bacterial specimen using basic laboratory technique and biochemical tests. The unknown bacteria will be one of the following: Enterococcus faecalis‚ Staphylococcus saprophyticus‚ Escherichia coli‚ Enterobacter aerogenes‚ Proteus vulgaris‚ Salmonella [I assume typhimurium]‚ or Shigella [either flexneri or sonnei‚ we used both in our lab during the semester]. Procedure {and observations}: Observe bacterial colony morphology. {Colonies are large‚ beige or
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Introduction The purpose to this lab was to isolate and identify two unknown bacteria from a mixed culture provided to us by our instructor. This study was done by applying all of the methods that have been instructed on thus far in microbiology laboratory class. Each test performed‚ provided us with some key information about the unknown microbes in question and how the bacteria function. Materials and Methods Over a two week period‚ eight prepared types of test media were provided to
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the basis for this project. The bacterial cultures were maintained and used for various physiological‚ cultural‚ and biochemical tests and observations over several weeks. The purpose of culturing bacteria over half the course of the semester was to learn various techniques used in microbiology labs and to subsequently utilize those techniques for the purpose of identifying the bacteria. The data‚ once compiled‚ was then used to determine the possible identity of the unknown bacteria based on the
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2.1 Sanitation Methods There are Four Methods that conducted on the laboratories in order to detect the presence of microorganisms. There are Rodac Method‚ Swab Method‚ Rinse Method‚ and lastly Open Dish Method and it will be discussed in detail below. 2.1.1 Rodac Method The purpose of this Standard Operating Procedure is to describe a program that will adequately measure the efficacy of disinfection of Rooms and equipment in each laboratory‚ RODAC plates can detect the presence or absence of
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The Unknown Citizen Wystan Hugh Auden (To JS/07/M/378 This Marble Monument Is Erected by the State) 1. He was found by the Bureau of Statistics to be 2. One against whom there was no official complaint‚ 3. And all the reports on his conduct agree 4. That‚ in the modern sense of an old-fashioned word‚ he was a saint‚ 5. For in everything he did he served the Greater Community. 6. Except for the War till the day he retired 7. He worked in a factory and never got fired‚ 8. But satisfied
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Introduction The Manila Ocean Park is an oceanarium in Manila‚ Philippines. It is owned by China Oceanis Philippines Inc.‚ a subsidiary of China Oceanis Inc.‚ a Singaporean-registered firm that has operated four oceanariums in China. It is located behind the Quirino Grandstand at Rizal Park. It opened on March 1‚ 2008. In terms of floor space‚ the 8‚000 square meters (86‚000 sq ft) oceanarium is larger than the Sentosa Underwater World oceanarium in Singapore‚ and features a 25-metre (82 ft) underwater
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and women under pressure to fit the image of perfection‚ yet when a person does achieve this so called perfection‚ others ridicule them for succumbing to peer pressure. In “The Unknown Citizen” by W. H. Auden‚ the speaker‚ a government bureaucrat‚ also takes on this two-faced attitude towards a man identified as the unknown citizen. At first glance‚ this poem seems like the well-deserved tribute to a man who lived the perfect life‚ but after a more detailed analysis‚ the speaker reveals his attitude
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