Aim This experiment is to determine the vitamin C content in different brands of processed fruit juices. Hence‚ compare the vitamin C content in the experimental results with the manufacturer’s claim and to find out the best buy. Principle Vitamin C (ascorbic acid) is a reducing agent‚ the vitamin C content of processed fruit juices can be determined by oxidizing ascorbic acid‚ C6H8O6 to dehydro-L-ascorbic acid‚ C6H6O6. A reagent that is particularly good for the oxidation is an aqueous solution
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1. Thermal inertia is a measure of the thermal mass and the velocity of the thermal wave which controls the surface temperature of a material. In heat transfer‚ a higher value of the volumetric heat capacity means a longer time for the system to reach equilibrium. 2. The ocean acts as a massive heat-retaining solar panel. 3. Salinity‚ temperature and depth all affect the density of seawater. 4. A pycnocline is the cline or layer where the density gradient (∂ρ⁄∂z) is greatest within a body of water
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Experimental: 2.04 g of KHP‚ 100ml volumetric flask‚ distilled H2O‚ approximately 0.1 M of NaOH‚ Vinegar‚ Phenolphthalein‚ 250ml Erlenmeyer flask‚ weighing balance‚ Graduating Cylinder‚ burette and pH meter were used in our experiment. In our first part of our experiment to prepare a primary standard‚ 0.1 M solution of KHP‚ we carefully weighed out 2.04g of KHP in a weigh paper using the weighing balance and transferred the measured KHP into a 100ml volumetric flask. We rinsed the weigh boat with
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conducted to real subject in obtaining the real time result and brain mapping of the activity in human brain. Electric Capacitance Volume Tomography (ECVT) were used to measure electrical signals generated from human brain activity and reconstruct volumetric image of the brain signal in real time. ECVT is a method for determination of the dielectric permittivity distribution in the interior of an object from external capacitance measurements. It predicts the permittivity distribution of an unknown
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consequences of dangerous dieting. Retrieved from http://www.obesity –treatment.com/feature/health Ornish‚D.‚ MD. (2007) The Spectrum. New York: Ballantine Books Pasternak‚ H.‚ M.Sc (2006) The 5-Factor Diet Rolls‚ B.‚ PhD & Barnett‚R.A.‚ (2000) The Volumetrics of Weight-Control Plan. New York: HarperCollins Zelman‚K.‚ MRH‚ RD‚ LD (2008‚ January 24) Retrieved from: Webmd.com/diet/liquid diets.
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Experiment 5 Analysis of Analgesic Tablet by High Performance Liquid Chromatography Abstract An unknown sample‚ 529‚ was tested using high performance liquid chromatography to detect the concentrations of acetaminophen‚ aspirin‚ and caffeine respectively. There was found to be 4.03±0.144mg/100mL of acetaminophen‚ 11.5±0.185mg/100mL of aspirin‚ and 4.89±0.185mg/100mL of caffeine. Based on accepted values‚ the maximum daily amounts of each compound are 4000mg of acetaminophen
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mini project Mini Project (RDD-750) Project Title: Design of Pressure Swing Adsorption system for removal of CO2 and H2S from biogas using zeolites. ______________________ Guided By : Prof. V. K. Vijay C.R.D.T. IIT-Delhi Submitted By: Vikas Tiwari Dept. of Chemical Engineering IIT- Delhi 1 Table of Contents Table of contents…………………………………………………………………...1 ABSTRACT………………………………………………………………………..2 1. Objectives of the project. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Polymer Chemistry Course‚ KTE 080‚ 2014 Patric Jannasch ———————————————————————————————— Laboratory procedures in polymer chemistry Polymer & Materials Chemistry 1. Free Radical Bulk Polymerization of Styrene This protocol describes the bulk polymerization of styrene at 60 oC using 2‚2´azobisisobutyronitril (AIBN) as an initiator. The monomer styrene first has to be purified before it can be used. The purification is performed in order to remove inhibitors and impurities‚ which can
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pH Titration of Phosphoric Acid & Spectrophotometer Determination of the Percentage of Phosphoric Acid‚ in Cola Drinks (Experiment 23 & 24) Robbie Kinsey Partner: Debnil Chowdhury Chem. 1312-D TA’s: Russell Dondero & Sylvester Mosley Performed Feb. 16‚2000 Purpose The objective of this lab was to determine the concentration of phosphoric acid in cola through two different methods: a pH titration and a spectrophotometer
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CHM151LL Laboratory Report Form Fall 2011 Title: Project 5: SPECTROPHOTOMETRIC ANALYSIS OF A PENNY Date Run: 04/03/2012 Date Submitted: 04/15/2012 Grade: _____________________ Objectives: The purpose of this experiment is to use spectrophotometry to determine the percentage of copper in a copper-clad penny‚ and to determine the thickness of copper layer on the copper-clad penny. Introduction: In the spectrophotometric analysis of a penny lab‚ we will be conducting three
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