Experiment 2 – Identification of Inorganic Solids Jesse Galina CHM 101 Lab Monday October 1‚ 2012 Unknown Solid – 2 Identifying my cation was rather easy because of the color of the powder when it was first given to me. It was pinkish/slight red when solid and when it was grounded up even further. This observation ruled out every cation except for some hydrated Co (II) salts. After being dissolved in water‚ the solution turned pink which agrees with the statement that the cation was Co
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Binna Burra section map Lamington National Park o ad Illinbah To Canungra and Nerang Bu rra Walking track Distance Walking time d C Piccabeen Creek Ri ve r *Gold Coast Hinterland Great Walk— do not proceed unless you have a topographic map. Egg R Bin na n gi Bellbird ra rra lookout Ku Cre Be l ird lb Lo we r B ir d Caves circuit Gwongoorool (pool) Kweebani Cave Ck Yangahla lookout Charraboomba Rock Ships Ste Tracks do ek
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EVALUATION OF THE EFFECTIVNESS OF SAFETY STOCK OF PU CHEMICALS AND CONSUMABLES IN VKC SANDALS (I) PVT.LTD A report of the Research Project submitted in partial fulfillment of the requirements for the MBA (Full time) Degree of the Mahatma Gandhi University Submitted by: AMRUTHA MARY LUKOSE Reg. No.51135 2013-15 Batch Focus on Excellence FISAT BUSINESS SCHOOL Hormis Nagar‚ Angamaly‚ Cochin –683 577 APRIL-MAY 2014 ACKNOWLEDGEMENT “NOT ON OUR MERITS‚ BUT
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Atoms‚ Molecules‚ and Elements CHM/110 William De Vorick June 30‚ 2014 Atoms‚ Molecules‚ and Elements Demetri Mendeleev was trying to organize the elements into a table by weight when he noticed that as the weights increase occasionally the properties of one element would resemble those of an element he already listed so he placed these elements in a column under the ones they resembled chemically ( Capri‚ PhD‚ 2003). Each chemical in the vertical rows on the periodic table are considered
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Carbohydrates H2SO4 acts as dehydrating agent forming furfural derivatives which interact with alpha-naphthol librating a violet layered compound Test | Molisch test | Objective | A general test for all carbohydrates. Monosaccharides give a rapid positive test. Disaccharides and polysaccharides react slower. | Principle involved | Dehydration of the carbohydrate by concentrated sulfuric acid to produce an aldehyde | Reagent | H2SO4 | Positive results | a purple-black layer/violet ring
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an unknown sample of hard water by accomplishing the technique of complexometric titration with EDTA. The data from the experiment was evaluated against the normal range for water hardness from the city of Tempe. Methods The procedures from the CHM 152 lab manual were followed (1). A 10 mL transfer pipet was used to add 10.00 mL of standardized calcium ion solution to 250 mL Erlenmeyer flask. A magnetic stir bar was used for stirring the solution. The unknown water sample number 154 was mixed
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UNKNOWN SAMPLE #97 COMPLEXOMETRIC DETERMINATION OF WATER HARDNESS DR. BUDRUK CHM 152 LL SEAN MARKIS 4 FEBRUARY 2015 Introduction Using a Lewis base neutral molecule to donate electron pairs (ligands) to a Lewis acid metal ion center to form a single cluster (complex) ion. When the complex ions forms with a metal ion (chelation) the ligand used is called the (chelating agent). EDTA acts as a great chelating agent due to the Nitrogen and Oxygen donating an electron pair to the
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COVENANT UNIVERSITY FACULTY OF SCIENCE AND TECHNOLOGY DEPARTMENT OF CHEMISTRY COURSE TITLE: General Organic Chemistry COURSE CODE: CHM 121 ‚ UNIT: 2.0 . INTRODUCTORY AND IMPORTANCE OF ORGANIC CHEMISTRY Organic chemistry is the study of the compounds of carbon. Carbon compounds are far more numerous than those of other elements because carbon are able to bond together to form a wide range of chains and rings. The subject is named organic chemistry because living organisms are composed
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The Half-Life of a Radioisotope CHM 152 Abstract: The half-life of an unknown radioactive isotope was investigated. The activity of the samples through use of a Geiger-Muller counter. The activity was measured for approximately five minutes per sample‚ and a half-life was calculated by the unknown. The results were calculated to indicate a half-life of 6.65 days of the unknown radioisotope. Introduction: The half-life of a radioisotope is defined as the amount of time necessary for one-half
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