Is glass a solid or a liquid "The idea that glass is a fluid is a very widespread myth." (Yvonne Stokes:1999‚Discover Magazine) This myth has survived for centuries because glass is such a confusing matter which cannot be compared to the three ordinary kinds of matter described in our particle theory of matter. Gasses contain free flowing molecules which are much further apart then liquids and gasses which removes the possibility of glass being a gas. A liquid however contains tighter bound molecules
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Crystals form in the depths of the Earth to the extension of the clouds in sky. Some think that crystals elude the sight of people’s eyes everyday in life‚ but they are everywhere including ingredients for food‚ construction materials‚ and even in ice-cold weather. The crystals in this experiment are ammonia-generated crystals that can be created right in a home. The experiment will be testing the different effects and products on crystals in different temperatures and forms of light. Different measurements
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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 solvent extraction‚ also known as liquid-liquid extraction‚ a method of separating two materials with different physical and/or chemical properties. Two methods of evaporation will be used to finally determine the concentration of impurity- one using an explosion-proof hot-plate‚ and one using a rotovap. III. Theory Fig. 1a+1b. Figure 1a shows how water and oil separate in the separatory funnel‚ while figure 1b shows the actual apparatus. Liquid-Liquid extraction is a versatile and dependable
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certain fluid. In this experiment two solutions are used. According to the definition of viscosity mobile liquids have a relatively low viscosity. Fluidity is the reciprocal of viscosity‚ given as equation 1: F=1/ η. Fluidity is advantageous because solutions of mixed solutions of nonassociating liquids are roughly additive. In this experiment binary solutions are used‚ so if each pure liquid has fluidities Fa and Fb‚ the fluidity of a mixture is given by: Equation1 (Halpern‚ 17-3).
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Rate of Evaporation of Different Liquids Objective of the Project This project is of the rate of evaporation of different liquid‚ in which we also discuss the factors which affect the rate of liquid. Introduction When liquid is placed in an open vessel. It slowly escapes into gaseous phase ventually leaving the vessel empty. This phenomenon is known as vaporization or evaporation. Evaporation of liquids can be explained in the terms of kinetic molecular model although there
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[pic] WORLD’S TOP CRYSTAL BRANDS 2009 Lalique [pic]homeshopping - 3 years ago [pic] René Lalique became synonymous with French Art Nouveau decorative arts. René Lalique was born in 1860 and first began designing fine jewelry in Paris in 1881. Lalique pursued increasingly more innovative experimentation in glass commencing around 1883. Early works used the familiar "lost wax" technique by which the model is made in wax while a mold is formed around the model. Then‚ the wax is melted and molten glass
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Name:Shin Park|Date:06/14/2013| Exp 5: Liquids and Solids|Lab Section: | Data Table: Boiling Point Trial 1 Trial 2 Trial 3 Temperature when the last bubble has emerged ___83_˚C __82__˚C __82__˚C Average temperature from all three trials ___82.33_˚C % error ___.0849_% Melting Point Trial 1 Trial 2 Trial 3 Temperature when the acetamide melts __82__˚C _81___˚C __82__˚C Average temperature from all three trials ___81.66_˚C % error
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Ocean County College Department of Chemistry Liquids and Solids Date Submitted: June 21‚ 2015 Date Performed: June 19‚ 2015 Lab Section: Chem-181DL1 Course Instructor: Prof. Amal Bassa Purpose The purpose of this experiment was to determine the boiling point of isopropyl alcohol and determine the melting point of acetamide. Procedure To begin I tied the test tube and thermometer together and inserted an inverted closed-end capillary tube into the test tube. I then
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------------------------------------------------- Liquid–liquid extraction From Wikipedia‚ the free encyclopedia Liquid–liquid extraction also known as solvent extraction and partitioning‚ is a method to separate compounds based on their relative solubilities in two different immiscible liquids‚ usually water and an organic solvent. It is an extraction of a substance from one liquid into another liquid phase. Liquid–liquid extraction is a basic technique in chemical laboratories‚ where it is performed
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