CHEM 3152-003 Experiment 2: Fractional Distillation and Gas Chromatography Introduction: The purpose of this experiment was to separate a mixture of ethyl acetate (EtOAc) and toluene by using the method of fractional distillation and to analyze the fractions using gas chromatography (GC). ethyl acetate toluene Distillation is a method known as separating or purifying a liquid or mixture by vaporization and condensation. In a simple distillation‚ the liquids being separated boil below 150 0C
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It was concluded that the product created was paracetamol when a thin layer chromatography test was performed and observed under ultraviolet light (which is discussed further down the page). An unknown substance was treated with acetic anhydrate and resulted with paracetamol. A compound that behaves in this matter is 4-aminophenol and is widespread in the industrial production of this drug. Upon these observations was the build up of “Chemical A” decided. When 4-aminophenol is t treated with
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Candy Shop When I’m with new people‚ I am the sad black licorice just waiting to be tasted by someone. No matter how hard I try‚ everyone seems to choose the red. Yet those who taste me‚ appreciate my eccentric flavour‚ Even if it’s something they wouldn’t savour again. When I’m on social media‚ I am a collection of perfectly made Sweethearts. No matter which one you choose to enjoy‚ I will always have something nice to tell you. This‚ because I am afraid to anger someone‚ I am afraid to push someone
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Analysis and Separation of Organic Acids in White Wine Using High Performance Liquid Chromatography Atis‚ Arnelson Arwin G. and Gaitos‚ Gerald M. Institute of Chemistry‚ University of the Philippines‚ Diliman‚ Quezon City Performed: December 9‚ 2011 Submitted: December 15‚ 2011 RESULTS AND DISCUSSION solutions containing increasing amounts of the organic acid. These solutions were contained in flasks numbered 5‚ 6‚ 7‚ 8‚ and 9. (Refer to
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Gas chromatography (GC) is a chromatography technique where the separation of individual components (analytes) from a sample relies on their differing distribution between a mobile and stationary phase. The mobile phase carries the analytes through the stationary phase. In GC‚ it’s an inert gas (usually helium or nitrogen). The gas must be inert‚ so it won’t react with the sample to give a false reading. The stationary phase is a substance fixed in place to which the sample adsorbs because
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Chromatography Experiment of the Drosophila Eye Pigmentation Pathway Introduction: How can the use of chromatography help explain single gene mutations of the drosophila melanogaster bio-synthetic pigment pathway? This experiment was meant to help connect the mode of inheritance with different eye color mutations and pinpoint where they occur in the pigment pathway. The drosophila eye color is a result of two bio-synthetic eye color pathways‚ this is expressed as a trait or phenotype‚ a multigene
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9.1 Orbitals and Theories of Chemical Bonding 1. Which one of the statements concerning valence bond (VB) and molecular orbital (MO) bond theories is correct? a) MO theory predicts that electrons are localized between pairs of atoms. b) In VB theory‚ bonding electrons are delocalized over the molecule. c) MO theory accurately describes bonding in O2 and NO‚ VB theory does not. d) VB theory can describe molecular bonding in excited states. e) MO theory is used to accurately predict
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of partition through Bapsi Sidhwa’s novel Ice Candy Man. ‘India is going to be broken. Can one break a country? And what happens if they break it where our house is? Or crack it further up on Warris Road? How will I ever get to Godmother’s then?’ – Lenny. Bapsi Sidhwa was born in 1938 in Karachi‚ Pakistan‚ to a Parsee family and grew up in Lahore. In 1947 India was partitioned‚ and Lahore became part of Pakistan. With her third novel‚ Ice Candy Man‚ Sidhwa established herself as Pakistan’s
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L.A. Candy is one of a trilogy series written by Lauren Conrad. The author was inspired to write this book due to the fact that she participated in two reality television series‚ Laguna Beach and The Hills. The genre of this novel is young-adult literature. Jane Roberts and Scarlett Harp just graduated from high school and move to L.A. to begin an active new life style. Jane works for an event planner‚ Fiona Chen while Scarlett studies at the University of Southern California. A producer of an
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Candy. One of America’s greatest sugary snacks. Candy comes in all forms from chocolate too hard to taffy to rock candy. In all Americans will purchase an estimated 2.5 billion in candy and will consume as much as12 bajillion grams of sugar. Candy is just one of the few items that has made America number one on the obesity chart. Americans are fueled by their compulsion of sugar even though we are fully aware that candy should be eaten in moderation. Chocolate is a natural product made from
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