with the eluent that is lower in polarity. 2. TLC in today’s experiment stands for Thin Layer Chromatography. 3. From least polar to the most polar: Heptane-Toluene-Acetone-Methanol-Acetic acid ‚ ‚ ‚ ‚ 4. The Rf (Retardation factor) is the ratio of the distance that the compound/mixture traveled to the distance the solvent/mobile phase traveled. 5. From least Rf to the highest Rf: Benzoic acid – Benzaladehyde - n-Decane If the TLC were run with a more polar solvent‚ all the
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not explored in this laboratory. This experiment explores these techniques to identify an unknown amino acid by TLC and analyze food colors using paper chromatography. By using 2.0 mL of dimethoxyethane and 18 mL of absolute ethanol as the developing solution‚ and then spotting each sample of amino acids and an unknown on the silica gel chromatography plate‚ we began the process of TLC plating. The ninhydrin solution was sprayed on the chromatography plate and allowed to dry. After allowing the solution
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One of the most significant moments in U.S. history was the terrorist attacks on that happened on September 11‚ 2001. This event was the first time in American history where we as a nation felt vulnerable to attacks. The aftermath from 9/11 has ensured that we made drastic changes to our security by enacting policies‚ and agencies such as the Transportation Security Administration (TSA)‚ Department of Homeland Security (D.H.S.)‚ U.S. Northern Command (NORTHCOM)‚ U.S.A. P.A.T.R.I.O.T. Act of 2001
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District 9 and Racism The aliens encountered in District 9 are treated with the same level of distain and indifference usually reserved for refugees and ethnic minorities. District 9 concerns itself with after the first encounter and the struggle of coexistence. The film is set in South-Africa and bears similarities to the apartheid system including those of the District 6 initiative. In District 9 black and white characters come together to hate on the “prawn‚” the aliens in this story‚ who then
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The New Pearl Harbor: Disturbing Questions About the Bush Administration and 9/11 By David Ray Griffin. Second edition. Olive Branch Press. 254 pages. $15. The 9/11 Commission Report: Omissions and Distortions By David Ray Griffin Olive Branch Press. 339 pages. $18. Christian Faith and the Truth Behind 9/11: A Call to Reflection and Action By David Ray Griffin Westminster John Knox Press. 246 pages. $17.95. Debunking 9/11 Myths: Why Conspiracy Theories Can’t Stand Up to the Facts By the editors
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On 9/11/2001 United States was attacked by terrorist group called al-Qaeda. 19 of them hijacked 4 planes. One plane crashed into the pentagon killing 184 people. Another plane‚ flight 93‚ crashed into an empty flied in Pennsylvania. The plane was originally heading to Washington DC‚ but crashed in a flied because the passengers fought back. The last 2 planes hit into the twin towers. The damage was so much that the south tower collapsed 56 minutes after it was attacked and the north tower didn’t
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STYLE-9/11 CITED PAGES * Ray Griffin‚ D. (2006‚ 5). The 9/11 Truth Movement - 911truth.org. 9/11: The Myth and the Reality - 911truth.org. Retrieved March 1‚ 2013‚ from http://www.911truth.org/article.php?story=20060405112622982 * Stanley‚ S. (2001‚ ). TruthOrFiction.com-Is that forwarded email Truth or Fiction? Research into stories‚ scams‚ hoaxes‚ myths‚ and urban legends on the Internet. Search Results. Retrieved March 1‚ 2013‚ from http://www.truthorfiction.com/google-result.htm?q=9%2F11
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Darryl Vick Dennis Phillips Eng. 111‚ 4301 25 April 2014 The Effects of 9/11 The attacks that took place in New York’s Manhattan city‚ on September‚ 11th‚ 2001 had rippling effects that caused a great deal of controversy. The chaos of the two planes soaring through the two towers crippled the American economy. It also created numerous health issues. Social issues were at another alarming effect that the effects of 9/11 had on the U.S.A. The attack was felt globally. The damage that was done
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ICD-9-CM Coding Mary Juenemann ICD-10- Coding Reaction ICD-10-Coding is it more effective than ICD-9-coding. With the ever changing medical world‚ institutions are always updating and changing policies‚ practices‚ and procedures. With this in mind the AHIMA along with others have made a more thorough and complete set of codes. The ICD-9 codes have 13‚000 codes available and 855 categories to choose from. With the ICD-10-CM there are 120‚000 codes and 2033 categories‚ as well as 3 to 7 character
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sound‚ mise-en-scene‚ editing) used in the film to create realism. District 9 is a science fiction documentary style film directed by Neill Blomkamp in 2009‚ set in present time in Johannesburg‚ South Africa. District 9 uses stylistic techniques such as cinematography‚ sound‚ mise-en-scene and editing to make us‚ the audience‚ believe that the alien invasion redundant is truly happening in our world today. District 9 also uses strong documentary techniques to reel the audience in even further and
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