1) First‚ all the materials were gathered and the Boiling point apparatus was assembled. 2) Two mL of methanol were poured into a dry test tube‚ and two small boiling stones were added. The tube was secured to a ring stand so that the surface of the methanol was slightly below the oil level in the beaker and the tip of the thermometer was about 1 cm above the surface of the methanol. 3) The mineral oil was heated. The temperature of the oil bath was checked with a different thermometer
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density of the following liquids and solids. Data/Observation: Part A Sample | Distilled Water (g) | Methanol (g) | Glycerol (g) | Mass of empty cylinder | 41.1 g | 40.4 g | 41.1 g | Mass of cylinder + liquid | 51.2 g | 48.2 g | 53.8 g | Mass of liquid | 10.1 g | 7.8 g | 12.7 g | Calculations: Density of liquid = Mass/Volume = g/mL Distilled Water = 10.1g/10mL = 1.01 g/mL Methanol = 7.8g/10mL = 0.793 g/mL Glycerol = 12.7g/10mL = 1.27g/mL Data Observation: Part B Sample
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Purpose: I will identify an unknown liquid by obtaining an average density & boiling point for my liquid and comparing them with the known densities & boiling points of liquids in the CRC handbook of Chemistry & Physics. I will perform these experiments using three different measuring tools (graduated cylinder‚ burette & pipette) to evaluate the precision of each one. Results: Density 1‚ 2 & 3 calculated by using graduated cylinder to obtain volume. Density 4‚ 5 & 6 calculated by using volumetric
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A Small Scale Approach to Organic Laboratory Techniques pp. 6-‐9 Report: Part A 1) Results in table form Solvent: Solvent: Solvent: methanol Solid Organic Molecules water hexane (intermediate (highly polar) (nonpolar) polarity) Benzophenone Soluble after O Partially Completely 20 seconds soluble
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for Corrugated Board . . . . . . . . . . . . .7 Viscosity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Low Viscosity . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 High Viscosity (Thick‚ Heavy Adhesive) . . . . . . . . . .9 Effects of Shear on Viscosity . . . . . . . . . . . . . . . . . .9 The Temperature Viscosity Control System . . . . . . . .10 Viscosity/Time Relationship . . . . . . . . . . . . . . . . .11 Viscosity/Resin Relationship . . . . . . . . . . . . . .
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amount of blood flowing through a vessel‚ tissue‚ or organ during a given period of time and Blood pressure is the force exerted on a vessel wall by the blood traveling through it. 2. Describe the relationship between blood viscosity and blood flow. As blood viscosity increases‚ blood flow decreases. 3. Describe the relationship between vessel radius and blood flow. Vessel radius has a direct relationship with blood flow. As blood vessels constrict (vasoconstriction)‚ blood flow is decreased
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VOL. 6‚ NO. 9‚ SEPTEMBER 2011 ARPN Journal of Agricultural and Biological Science ©2006-2011 Asian Research Publishing Network (ARPN). All rights reserved. ISSN 1990-6145 www.arpnjournals.com PROMISING ANTIFUNGAL EFFECT OF SOME FOLKLORIC MEDICINAL PLANTS COLLECTED FROM EL- HAMMAM HABITAT‚ EGYPT AGAINST DANGEROUS PATHOGENIC AND TOXINOGENIC FUNGI Department of Bioprocess Development‚ Genetic Engineering and Biotechnology Research Institute‚ Mubarak City for Scientific Research and Applied Technology
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Temperature on The Viscosity of Glycerol Research Question: What is the effect of increasing the independent variable of the temperature of glycerol (30ºC‚ 40ºC‚ 50ºC‚ 60ºC and 70ºC) (+ 0.5ºC) using a hotplate and measured using a thermometer (+ 0.05º)‚ on the dependent variable of time (secs + 0.2) taken for 50mL (+ 0.05ml) of glycerol to flow through a 50cm3 burette (+ 0.05cm3) into a 250 mL beaker (+ 12.5 mL) measured by a digital stopwatch (+ 0.2secs)‚ therefore indicating the viscosity of glycerol
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Lubricant A lubricant is a substance introduced to reduce friction between moving surfaces. It may also have the function of transporting foreign particles. The property of reducing friction is known as lubricity. Lubricant is a material that reduces the friction arising due to the sliding / gliding / rolling / moving of two different components in a machinery. Friction is an undesirable process that results in (i) wear and tear of the surfaces of the moving parts (ii) loss of enormous energy as
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LOVELY PROFESSIONAL UNIVERSITY DEPARTMENT OF MANAGEMENT SUMMER TRAINING REPORT ON DOCCUMENTATION OF A PHARMACEUTICAL PRODUCT “RANITIDINE” AND DOSSIER FORMULATION FOR EXPORT TO PHILLIPINES [pic] | [pic] | |
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