Post Lab #4- Column Chromatography Organic Chem 3418-2 March 3‚ 2011 Theoretical Background- The fluorene and fluorenone mixture was separated by first dissolving the mixture in heptane. Since “like dissolves like”‚ fluorene dissolves with the non-polar heptane and the polar fluorenone dissolves in the polar ethyl acetate solvent. This phenomenon was illustrated in class before the experiment‚ when it was pointed out why water will not dissolve fluorene‚ fluorenone‚ or transstilbene
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fifty-eight feet high is the Marble Column from the Temple of Artemis at Sardis‚ known as one of the seven wonders of the world. The marble column that stands tall at the Metropolitan Museum of Art is different from the rest found at the site of the temple because the capital is slightly smaller than the rest. This indicates that it did not belong to the outer colonnade. The columns at the Temple of Artemis are found to be ionic orders‚ being one of the three different types of orders of classical
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CIVIL ENGINEERING ABSTRACT This report describes a compression test on concrete columns. The main aim of the tests was to illustrate the ultimate strength limit state of reinforced concrete columns in combined bending and compression and to demonstrate the influence of slenderness on the ultimate load capacity. Test methods are described. It was found that the concrete columns exhibited complicated behaviour‚ and had a squash load point of 342.7KN and moment at 0 KN.m‚ a decompression
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Data Input Methods Optical data readers The best data input method for printed questionnaires would be Optical Data Readers. Optical Data Readers are a special type of scanning device to be used on documents. Optical Data Readers fall under two categories‚ optical mark recognition (OMR) and optical character recognition (OCR) (Stair‚ R.‚ Reynolds‚ G.‚ 2004). Printed questionnaires which‚ for instance‚ can be used for surveying groups of people regarding a particular subject can utilize OMR through
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COLUMN AND THIN LAYER CHROMATOGRAPHY Group 9 RAMOS‚ Sharina Joy; REYES Aina Marie; REYES Jallisa Maan; RUBIO‚ John Michael; SABINO Patricia Anne; SANTOS‚ Carlos Rafael ABSTRACT To separate the colored components of siling labuyo and to determine the purity of the components‚ the students performed a column and thin or solid-liquid chromatography procedure. The solid may be almost any material that does not dissolve in liquid phase. But for this experiment‚ the solid used by the students was
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Dear Madame Loisel‚ I received your letter about the issue concerning your friend’s lost necklace. According to your worried note‚ you had gone to a ball and wore your friend Madame Forestier’s expensive diamond necklace and lost it. The clasp had broken and you didn’t realize it had fallen off until you returned home. My advice to you is to contact the people who hosted the ball and have them look around or ask if anyone found a necklace. If you have no luck‚ be completely honest
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has frequently been used as propaganda‚ promoting the interests of the elite in a controlled manner over their subjects. The images presented‚ the Stele of Hammurabi and the Column of Trajan‚ are monumental examples of such propaganda. The Stele of Hammurabi is over 7 feet tall and was displayed in a public space. Trajan’s column was 38 meters high and displayed publically. It was important for propaganda to be seen by as many people as possible to be successful. More than just eye-catching‚ the monuments
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color TLC plate. In a column chromatography‚ cotton and sand is placed in purpose of holding silica gel and prevent leakage of adsorbent particles. Dry loading is then applied to the column to eliminate applying the polar solvent as well as to allow separation to have enough time and space in process of dissolving and loading. At the beginning of the chromatography‚ petroleum ether‚ 8%tBME/petroleum ether‚ and pure tBME are used respectively. As the solvent pass down the column‚ differential interaction
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DATA COLLECTION Business Statistics Math 122a DLSU-D Source: Elementary Statistics (Reyes‚ Saren) Methods of Data Collection 1. 2. 3. 4. 5. DIRECT or INTERVIEW METHOD INDIRECT or QUESTIONNAIRE METHOD REGISTRATION METHOD OBSERVATION METHOD EXPERIMENT METHOD DIRECT or INTERVIEW Use at least two (2) persons – an INTERVIEWER & an INTERVIEWEE/S – exchanging information. Gives us precise & consistent information because clarifications can be made. Questions not fully understood by the respondent
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"Sensory Perceptions" Name: Hye Min Shin Professor: Craig A. Munns PHI210 Week2 Assignment Date: October 20‚ 2013 ‚ Provide at least three (3) reasons for believing in the accuracy or inaccuracy of sensory information. Our senses are the connection between the world and our mind. A lot of philosophers defined our senses as the window of the soul. Every sense in our brain work hand to hand and build a combined picture of where we are‚ who we are‚ and what is
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