Kate Kirby June 6‚ 2013 Title: Extraction of an Unknown Compound Purpose: The purpose of this experiment was to separate a mixture of two or more unknown compounds and identify them based on their melting point and reactivity with an acid or a base. Compound studied/Reactions: The organic solvent used in this experiment was methyl t-butyl ether (MTBE‚ 2-methoxy-2-methylpropane). The unknown that dissolved in the MTBE‚ but was insoluble in water. MBTE is very volatile and flammable. It was
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with invisible ink in the American Revolution There were plenty of problems with invisible during the American Revolution‚ but there were a few that were worse than the others. Three of the main problems were that supplies were hard to come by to make invisible ink this is the one that was the hardest problem to overcome. One problem was that blank spaces on paper were suspicious. Another problem was that when heated the paper would become fragile. During the revolution the ink supply was low
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Lab report for Experiment #2: Extraction Your Name: Name of TA: Lab Partner’s Name: Lab Section: Title: Experiment #2: Extraction Purpose: What is the purpose of this lab? In your OWN words! Observations: Weighed out 3.2568 grams of chemical mixture that was yellow in color. Dissolved dry chemicals in 38 ml CH2Cl2 with gentle heating. Poured the yellow solution into sep funnel. Added 10 ml CH2Cl2 to flask to rinse‚ poured solution into sep funnel. Added 15 ml 3 M
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Extraction is a method used for separating and isolating materials. A compound is pulled from solvent A to solvent B and in this case‚ both solvents are miscible. These two concepts are not capable of mixing together; when they are mixed together‚ they form a bilayer. This can be seen when mixing oil and water together. When thinking of extractions‚ one can picture how coffee gets extracted. The flavors‚ molecules‚ caffeine‚ etc. are extracted from the coffee beans. In this experiment‚ a solution
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Ink jet computer printers Well‚ I’m going to talk about ink jet computer printers‚ that I believe everybody knows‚ because we use them almost every day. I will present you what types of ink jet printers we know and how works each of them. After my presentation or at home you should do the exercises‚ I (mr. somebody) gave you. We know different types of ink jet printers like thermal ink jets‚ piezoelectric ink jets and continuous ink jets. Each of them works in a different way. Most of
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................................ 2 Hybrid Seed Production of Rice ......................................................................................................... 3 Hybrid seed production of Maize ..................................................................................................... 13 Hybrid seed production of Tomato .................................................................................................. 17 Hybrid seed production of pumpkin ....................
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The termites’ reaction to pheromones in different colors of ballpoint pen ink. Abstract: We conducted the experiment with termites in order to determine how they react to pheromones present in different colors of ballpoint pen ink. The experiment consisted of two parts: in first part we used a ballpoint pen with blue ink‚ in second – a ballpoint pen with red ink. The reaction of termites was measured by their performance in 1 minute. Every termite in experimental group went through 3 tries in each
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Of a Sample Mixture By Liquid-Liquid Extraction Reading assignment: Techniques in Organic Chemistry 2nd ed pages 75-99. 3rd ed pages 113-140. Topics and Techniques i) identification of solvent layers of two immiscible solvents ii) partioning of a compound between two immiscible solvents and determination of KD iii) liquid-liquid extraction with aqueous acids and bases with organic solvents. iv) use of drying agents Introduction Liquid-liquid extraction is a method used for the separation of
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THE EFFECT OF PAPAYA EXTRACT IN SEED GERMINATION OF MONGO SEEDS I. INTRODUCTION The angiosperm‚ or flowering-plants‚ from the Greek word Angein means vessel or receptacle‚ makes up the most adundant and dominant group in the kingdom plantae. From grasses to cacti‚ from tiny herbs and wild flowers to large maple trees and oaks‚ considering all plants familiar to you are majority belongs to these group. (Moses‚ P.B.‚ Chua N-H‚ 1988) In angiosperms‚ flower is the crucial site where sexual reproduction
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JUICE EXTRACTION After weighing‚ sugarcane is loaded by hand or crane onto a moving table. The table carries the cane into one or two sets of revolving knives‚ which chop the cane into chips in order to expose the tissue and open the cell structure‚ thus readying the material for efficient extraction of the juice. Frequently‚ knives are followed by a shredder‚ which breaks the chips into shreds for finer cane preparation. The chipped (and shredded) cane then goes through the crusher‚ a set of roller
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