organic compound in the indicated solvents either as soluble‚ partially soluble‚ or insoluble. (9 Points) Organic Compound Water (solvent) Methyl alcohol (solvent) Hexane (solvent) Benzophenone Malonic Acid Biphenyl 2) There should be a difference in the results between the solubilities of biphenyl and benzophenone in methyl alcohol. Explain why there is this difference. If no difference was observed‚ then predict which one should be more soluble and
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tube only showed growth along the stab line‚ the rest of the tube was clear‚ which allowed me to come to the conclusion my unknown was nonmotile. The genus that best matched a gram negative‚ rod‚ nonmotile‚ facultative anaerobe was Klebsiella. The Methyl red‚ Voges-
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contains a six-membered ring in the chair conformation with all the substituents equatorial. Draw this most stable conformation of glucose. Reactive intermediates and their properties (Chpt 5): 4. Draw the Lewis structures of methyl carbanion‚ methyl carbocation‚ methyl radical‚ and methylene carbene. Which is the most electrophilic? Which is the most nucleophilic? 5. Write a mechanism for the light-initiated reaction of cyclohexane with chlorine to give chlorocyclohexane. Draw a reaction-energy
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1. Title: The Process of Determining the Unknown Bacteria #9 Rachel Judecki July 5‚ 2011 2. Introduction: Each student was given unknown bacteria and was instructed to perform a variety of experimental tests that would help to identify their bacteria. During the process of identification‚ the unknown bacteria was added to many different testing medias using aseptic technique. They are as follows: lactose fermentation on eosin methylene blue (EMB)‚ TSI (Triple Sugar Iron agar)‚ Phenol
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bacteria could not use lactose or sucrose. o Sugar fermentation tests are positive when the pH turns acidic. How are media for these tests modified to allow production of acids to be detected? The MR test employs the addition of the pH indicator methyl red‚ to
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It is generally assumed that the toxicity of streptozotocin is dependent upon the DNA alkylating activity of its methylnimethylnitrosourea moiety‚ especially at the O6 position of guanine. The transfer of the methyl group from streptozotocin to the DNA molecule causes damage‚ which along a defined chain of events‚ results in the fragmentation of the DNA. Protein glycosylation may be an additional damaging factor . In the attempt to repair DNA‚ poly(ADP-ribose) polymerase (PARP) is overstimulated
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p. 1 Megan Ly Chemistry 231L February 20‚ 2013 SOLUBILITY Purpose: To better comprehend solubility behavior by investigating the solubility of various substances in different solvents‚ looking at miscible and immiscible pairs of liquids‚ and observing the solubility of organic acids and bases. Reference:
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which consist of talcum‚ cornstarch and salicylic acid j. aniline k. lipstick II. ENCIRCLE THE WORD THAT DOES NOT BELONG TO THE GROUP (2 pts each) 1. rubber‚ teflon‚ PVC‚ sugar 2. sodium nitrite‚ sodium sulfate‚ sodium benzoate‚ penicillin 3. erythromycin‚ depilatories‚ streptomycin‚ chloramphenicol‚ 4. agar‚ ascorbic acid‚ carageenan‚ phenylbutazone 5. dyes‚ lipsticks‚ lotions‚ astringents III. IDENTIFICATION. Identify that which is spoken of. Write the
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BIOREMEDIATION INTRODUCTION:- The process of bioremediation was reportedly devised by George M Robinson in the 1960 during experimentation with dirty jars and the introduction of microbes this was however not applied until the 1972 clean out of the fuel holding tanks on the RMS queen mary. Science 1972 bioremediation has become greater developed as a means of cleaning up spills of gasoline diesel ‚ heavy metals and other easily degraded petroleum products (National Research Council 1993). Bioremediation
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stronger than Tums. Procedure: 1) Crush 2 small Rexall’s and put in a flask. 2) Crush 1 Tum and put in a flask. 3) Poor 25ml of warm water in each flask. 4) Let flasks sit for 6 minutes and swish around fluids every 20 seconds. 5) Add 5 drops of methyl orange to each flask. 6) Record observations. 7) Add 1ml of NaOH until you see a color change (both flasks are the same color) 8) Record amount of NaOH used for each antacid. 9) The flask that needed the least NaOH is best/more effective. 10)
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