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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OF DISSOLVED OXYGEN CONTENT BY WINKLER REDOX TITRATION A. Standardization of Thiosulfate Solution Primary Standard used: KIO3 Formula Mass of Primary Standard: 214.0010 g/mol %Purity: 99.9% Formula Mass of KI: 166.00277 g/mol %Purity of KI: 99.9% Trial 1 2 3 KIO3 weight‚ g 0.1459 0.1458 0.1459 KI weight‚ g 1.0033 0.9857 1.0100 Volume of Na2S2O3‚ ml Final Volume‚ ml 22.6 25.5 22.9 Initial Volume‚ ml 0.0 0.0 0.0 Net volume‚ ml 22.6 25.5 22.9 B. Sample Analysis Volume of Sample: 400 ml Volume of sample
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clear blue with the 1 drop of HCl green/blue F. NaOCl + KI A2 rusty-yellow with 1 drop of starch black G. KI + Pb(NO3)2 B2 yellow‚ not clear H. NaOH + phenolphthalein A3 purple‚ violet I. HCl + phenolphthalein A4 clear J. NaOH + AgNO3 D3 murkey‚ brown K. AgNO3 + NH3 A4 purple‚ then cloudy white/clear after exposure to bright light pink tint L. NH3 and CuSO4 A5 cloudy dark blue Part F: Testing of Various Foods with the NaOCl + KI solution Foods Presence or Absence of Starch potato yes
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The Iodine Clock Investigation Introduction This is an investigation into the rate of a reaction and the factors that contribute to how fast a reaction will take place. Through the recording and analysis of raw data‚ this investigation also allows us to apply generally accepted scientific rules and to test them against results gained from accurate experimental procedures. Aim The aim of this experiment is to investigate the rate at which iodine is formed when the concentration
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He was a Damascene jurist and a pious Muslim who was the first to preach jihad against the crusaders in the aftermath of the First Crusade. He was one of the first to misconstrue jihad and preach the misinterpretation of jihad .He wrote the book Kitab Al- Jihad which means “book of the holy war”. In this book he proposes for the first time Jihad as a means of warfare against non-believers. “If he did not undertake the sending of enough troops to fight‚ those who are absent (must) go out‚ and consider
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------------------------------------------------- A. K. Ramanujan From Wikipedia‚ the free encyclopedia For the mathematician ‚ see Srinivasa Ramanujan Attipat Krishnaswami Ramanujan (Kannada: ಅತ್ತಿಪೇಟೆ ಕೃಷ್ಣಸ್ವಾಮಿ ರಾಮಾನುಜನ್) (1929–1993) was a scholar of Indian literature who wrote in both English and Kannada. Ramanujan wore many hats as a Indian poet‚ scholar and author‚ those of a philologist‚ folklorist‚ translator‚ poet and playwright. His academic research ranged across five languages: Tamil
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In reviewing Charles Simic’s latest collection for the New York Times‚ Katha Pollitt briefly (and importantly) mentions his work as a translator of Serbo-Croatian poets‚ including Vasko Popa and Ivan Lalic. I adore Popa’s work‚ but am unfamiliar with Lalic’s‚ beyond the poems Simic included in his anthology of Serbian poets‚ The Horse Has Six Legs. Another star from this anthology‚ whose name I don’t often see mentioned (certainly not as frequently as Popa’s) is Aleksandar Ristovic. In his introduction
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I. Title: Analysis of a Commercial Bleach II. Purpose: III. Materials: Commercial bleach‚ 5% NaClO. (5 mL). Hydrochloric acid (HCl)‚ 3M. (6 mL). Potassium Iodide (KI). (6 g). Sodium thiosulfate solution (Na2S2O3)‚ 0.100 M. (70 mL). Starch solution 2%. (3 mL). Safety goggles Apron Digital scale Buret Buret clamp Erlenmeyer flask Pipet bulb Ring stand Ttransfer pipet‚ 5 mL and 25 mL Volumetric flask‚ 100 mL Stopper Wash bottle Distilled water Weigh boat Beakers‚ IV. Procedures:
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nothing seriously‚ all he likes to do is eat and train. The only time to take things seriously is when he is battling. When it comes to battling‚ he is very strategic. In the Dragon Ball Z universe people are able to use Ki. Ki is the force that’s forms of any living thing. Goku uses Ki to perform destructive‚ and powerful attacks. He has an arsenal of
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