Laboratory #6 Qualitative Tests for Carbonyls: Aldehydes vs. Ketones Introduction Various chemical tests identifying ketones and aldehydes are used in this experiment in order to identify an unknown carbonyl compound. The tests used are: 2‚4-dinitrophenylhydrazone test‚ Tollen’s Test‚ Benedict’s Test‚ Chromic Acid Test‚ aka Bordwell-Wellman Test‚ Schiff’s Test‚ and Iodoform Test. These classification tests provide results based on color change or formation of precipitation‚ which is then used
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Classification Tests for Carboxylic Acid and Derivatives Mary Catherine Sarte‚ John Emmanuel Sy‚ Allurie Umel‚Franklin Yap‚ Mary Christine YouIntroduction Carboxylic acids derivatives are simply groupsof compounds that contain a carbonyl group butwith an electronegative atom attached to thecarbon. The difference in the structure leads to amajor change in reactivity. The reactions of thesegroups of compounds involve nucleophilicsubstitution. Although there are abundant kindsof carboxylic acid derivatives
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CODE-P JEE(MAIN) – 2013 TEST PAPER WITH ANSWER (HELD ON SUNDAY 07th APRIL‚ 2013) PART B – CHEMISTRY Which of the following complex species is not expected to exhibit optical isomerism ? (1) [Co(en)3]3+ (2) [Co(en)2 Cl 2]+ (3) [Co(NH3)3 Cl3] (4) [Co(en) (NH3)2Cl2]+ Ans. (3) 32. Which one of the following molecules is expected to exhibit diamagnetic behaviour ? (2) N2 (1) C2 (3) O2 (4) S2 Ans. (2) 33. A solution of (–) –1–chloro–1–phenylethane in toluene racemises slowly in the presence of a small
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EXTRACTION OF INTRACELLULARLY SYNTHESISED SILVER NANOPARTICLES USING FUNGI VERTICILLIUM TERRESTRE. By: Author: Mr. Imran Latif Patel‚ (T.Y.B.Sc.Biotechnology) Co-Author: Prof. Mrs. Ragini Deshpande. (M.Phil‚ Biophysics) New Arts‚ Com. And Science college‚ Ahmednagar. (University of Pune.) ABSTRACT: Nanobiotechnolgy has become the subject of discussion at global level. Nanoparticles are proving themselves “VITAL” in
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Chem 102 - Lab #2 Quantitative Analysis of a Soluble Sulfate Steven English Lab Instructor: Dr. Campo Date: Tuesday‚ February 5th 2013 Pre-Lab Questions A. Adding the acid to the sodium sulfate solution results in an increase in the solubility of any free anions present in the sample. This will happen because the present anions will bind with the hydrogen cations present in the acid. B. The sodium sulfate is boiled because experiments have shown that barium sulfate is 50
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EXPERIMENT 9 Composition Potassium of Chlorate IUA-‚TERIAL S AND E QUI PME NT Solids: Reagent Grade potassium chlorate (KC1O3)and potassium chloride (KCl). Solutions: dilute (6 M) nitric acid (HNO3) and 0.1M silvernitrate (AgNO3). Th.o No.0 crucibles with covers; Ceramfab pad. DISCUSSION The percentage composition of a compound is the percentage by mass of each element in the compound. If the formula of a compound is known‚ the percentage composition can be calculated from the molar mass and the
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FMDC 2012 ENGLISH Q ambiti0n is one of those __which is never satisfied. A) ideas B) fancies C) energies D) passions Q. The opponents were outnumbered‚ but still the commander refused to give...? A) out B) way C) over D) in Q. spot the error a. The dean of this college is a good friend of me. b. There have been heavy rainfall yesterday! Q. choose similar meanings a. barbarian (uncivilized‚ civilized) b. rude Q. choose opposite meaning
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Le Châtelier’s principle states that The system will have one reaction dominate until the offsetting changes allow the rates of the forward and reverse reactions to be equal again (reestablishing equilibrium). If the forward reaction dominates in order to offset the changes‚ we say the system “shifts to the right” or “shifts toward products” in order to reestablish equilibrium conditions. This will increase the concentration of the products and decrease the concentration of the reactants. However
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Naming Chemical Compounds General Information: Scientists all around the globe use a standard method for naming chemical compounds. The standards were set up by an international committee sponsored by the International Union of Pure and Applied Chemistry (IUPAC). Having this standard makes life easier for people who use these compounds everyday. It would be tough to set up any experiment if scientists everywhere used different names for the same compound. It would also make the lab a
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Introduction The purpose of this lab was to explore the properties of an unknown compound. An unknown was given and a cation flame test and anion test was performed to determine the identity of the compound. Once the identity was determined‚ the properties were explored. Experimental To determine the cation of the compound‚ a cation flame test was performed. A bunsen burner was lit until a medium blue flame was burning. The given unknown was scooped onto a nichrome wire loop. The wire was held
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