39. The Viscosity of Liquids After studying the present lecture‚ you will be able to Define viscosity and viscosity coefficient Outline the method to measure viscosity using Ostwald viscometer Determine the average molecular weight of a polymer Determine the surface concentration of 1-butanol in aqueous solution Measure the distribution coefficient of a solute betweenn two solvents 39.1 Introduction Viscosity‚ one of the transport properties‚ arises because of intermolecular attractive and
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mechanism is widely used. References "1-Bromopropane(106-94-5)." MSDS Melting Point Boiling Point Density Storage Transport. N.p.‚ n.d. Web. 14 June. 2015. . "2-Bromopropane." ChemicalBook---Chemical Search Engine. N.p.‚ n.d. Web. 14 June. 2015. . "Acetone." ChemicalBook---Chemical Search Engine. N.p.‚ n.d. Web. 14 June. 2015. . "Diethyl ether." ChemicalBook---Chemical Search Engine. N.p.‚ n.d. Web. 14 June. 2015. . "Ethyldiisopropylamine." ChemicalBook---Chemical Search Engine. N.p.‚ n.d. Web. 14 June
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prevented. Materials Sterile nutrient agar petri dish Wax Pencil Lens paper Sterile blood agar petri dish Igniter Immersion oil Sterile cotton swabs Crystal violet dye Pen Incubator Grams iodine Paper Refrigerator Alcohol acetone Distilled water Safranin dye Inoculating loop Sink Bunsen burner Wire rack Gas connection Paper towels Sterile microscope slides Light Microscope
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Jay C. Ridao Florencio Louis Pascual Relao De La Salle University- Dasmariñas Dasmariñas Cavite Philippines ABSTRACT The Copper Reactions experiment was demonstrate by adding the reagents like 16M HNO3‚ Distilled water‚ 6M NaOH‚ 6M H2SO4‚ Acetone‚ Zinc metal and Methanol into the beaker with the copper wire. The experiment was also demonstrated to observe how copper reacts while different reagent were being added. It was also demonstrated to practice the common laboratory techniques such as
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both. When predicting the outcome of SN1 and SN2 reactions‚ the nature of the carbon skeleton‚ nature of the solvent‚ and the nature of the leaving group are all taken into account. The experiment called for a two part reaction‚ sodium iodide in acetone (SN2) and silver nitrate in ethanol (SN1). A series of 8 test tubes were each filled with a different substrate to be tested by these two reagents. Approximately 4 drops of each substrate was added along with 2mL of reagent. If a precipitate was observed
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stirred at 60°C for 1 hour and then aged at room temperature for one week to get clear and transparent homogeneous solutions. Prior to film deposition‚ commercial glass substrates were ultrasonically cleaned by using deionized water‚ ethanol‚ and acetone for 15 min‚ respectively. Then‚ the substrates were dried in an oven at 80°C for 10 min. The substrates were dipped in the prepared sols and then withdrawn at a constant dip-coating speed of 15 mm/min. After each deposition‚ all samples were preheated
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on benzyl alcohol d-Block Elements I. Problems based on copper II. Problems based on chromium III. Problems based on zinc IV. Problems based on silver V. Problems based on gold Carbonyl compounds I. Problems based on acetaldehyde and acetone II. Problems based on benzedehyde III. Problems based on benzophenone & acetophenone Electro Chemistry - I Page No. www.kalvisolai.com 5 Mark Compulsory Problems with Solution 16. Hydroxy Derivatives 8 Q. No. 70 A Hydroxy derivatives problems
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hygroscopic crystalline solid which is Slightly solube in pH 2.3 buffer but partially insoluble in pH 4-7.5 buffers. This is Soluble in ethanol and DMSO but slightly soluble in acetone. Sofosbuvir is a white to off-white non-hygroscopic crystalline solid which is slightly soluble in water (pH1.2-7.7). this is also soluble in ethanol‚ acetone‚ 2-propanol.[4] 3.2 Drug Product: HARVONI is a fixed-dose combination tablet containing ledipasvir and sofosbuvir for oral administration. Ledipasvir is an HCV NS5A inhibitor
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“Denaturation of Proteins” Denaturation is a process in which proteins or nucleic acids lose the tertiary structure and secondary structure which is present in their native state‚ by application of some external stress or compound such as a strong acid or base‚ a concentrated inorganic salt‚ an organic solvent (e.g.‚ alcohol or chloroform)‚ or heat. If proteins in a living cell are denatured‚ this results in disruption of cell activity and possibly cell death. Denatured proteins
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unknown to dissolve it. After reaching room temperature‚ the flask was placed into a bucket with ice and DI H2O. The unknown was collected by vacuum filtration‚ rinsed with ice water‚ and dried to constant mass at 0.72 g. 13C NMR (100.13 MHz‚ acetone-D6): σ 15.5 (s‚ Me)‚ 24.3 (s‚ Me)‚ 29.9 (s‚ Me)‚ 30.1 (s‚ Me)‚ 30.3 (s‚ Me)‚ 30.5 (s‚ Me)‚ 30.7 (s‚ Me)‚ 30.9 (s‚ Me)‚ 31.1 (s‚ Me)‚ 64.7 (s‚ Me)‚ 115.7 (s‚ C=C)‚ 122.5 (s‚ C=C)‚ 133.5 (s‚ C=C)‚ 156.4 (s‚ C=O)‚ 170.8 (s‚ C=O)‚ 210.5 (s‚ >C=S).
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