DESIGN LAB Factors Affecting the Solubility of a Solid in a Liquid In this experiment‚ my goal is to determine the affect of temperature in the solubility of a solid in a liquid. Research Question: How does the change in the temperature affects the solubility of a solid in a liquid? Independent variables: Temperature of the Solution Dependent variables: The solubility of the solid substance Controlled Variables: * The pressure of the room. * The mass of zinc chloride
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Page 1 : E:\CC_Software\Workbench\CC-MW-CD\part2\phasechange\page1.cml 1. List three more everyday examples of phase change. -snow melting and freezing into ice -fuel being changed into gas for cars -ponds freezing over to have a layer of ice Page 2 : E:\CC_Software\Workbench\CC-MW-CD\part2\phasechange\page2.cml 1. Describe the motion of atoms and molecules in a gas. the atoms and molecules bounce off one another each time they come in contact with eachother. they never bond‚ but
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for time‚ temperature of Paradichlorobenzene‚ and temperature of water. 2. Fill a 250mL beaker about 3/4th full of cool tap water. Place a thermometer in the beaker and record the temperature to the nearest 0.2C 3. Obtain a test tube containing solid Paradichlorobenzene from your teacher and gently heat the test tube over a medium Bunsen burner flame. Move the test tube in and out of the flame at a slight angle. 4. Once the Paradichlorobenzene has melted‚ remove it from the flame and shut the
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An Introduction to Structure and Types of Solids Categories Crystalline Solids • Highly regular arrangement of atoms‚ ions and molecule • The position of the components are represent by a lattice • It has smallest repeating unit of lattice is called unit cell • Such as diamond‚ salt‚ sugar Amorphous Solid • A noncrystalline solid which their components not organized in lattice pattern. • Such as glass‚ plastic‚ gel Question 1. X rays from a copper X-ray tube (λ = 154) were diffracted at an
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The Stereochemistry of Bromine Addition: Bromination of trans-Cinnamic Acid Pitak Chuawong Objectives 1. To perform bromination of trans-‐cinnamic acid 2. To investigate stereochemistry of bromination reaction Introduction Alkenes undergo electrophilic addition to give alkyl halides. When bromine is used as a
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Filtration is commonly the mechanical or physical operation which is used for the separation of solids from fluids (liquids or gases) by interposing a medium through which only the fluid can pass. Oversize solids in the fluid are retained‚ but the separation is not complete; solids will be contaminated with some fluid and filtrate will contain fine particles (depending on the pore size and filter thickness). Filtration is also used to describe some biological processes‚ especially in water treatment and sewage
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Raquel Johnson October 19‚ 2014 Solids: Recrystallization and Melting Points Organic Chemistry 2423 Lab Report: Recrystallization Abstract: The purpose of this lab was to purify an unknown compound by recrystallization. Taking an unknown compound and identifying it by purifying it from its impurities through the use of hot gravity filtration. Then to determine the unknown you were to take the melting point. An unknown compound was recrystallized from hot water to produce 0.99 grams (67% recovery)
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sites. Illustration 16. In a solid‚ oxide ions are arranged in ccp. Cations A occupy one – sixth of the tetrahedral voids and cations B occupy one third of the octahedral voids. What is the formula of the compound? Solution: In ccp with each oxide there would be 2 tetrahedral voids and one octahedral voids 1/3rd octahedral voids is occupied by B and 1/6th tetrahedral void by A. Therefore the compound can be Illustration 17. In a crystalline solid‚ having formula AB2O4‚ oxide ions
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of shell-and-tube heat exchangers undergoing crude oil fouling. Ind. Eng. Chem. Res. 50‚ 4515–4533. Epstein‚ N.‚ 1983. Thinking about heat transfer fouling: a 5 × 5 matrix. Heat Transfer Eng. 4 (1)‚ 43–56. Finnie‚ I.‚ 1960. Erosion of surfaces by solid particles. Wear 3‚ 87–103. Hoang‚ T.A.‚ Ang‚ M.‚ Rohl‚ A.L.‚ 2011. Effects of process parameters on gypsum scale formation in pipes. Chem. Eng. Technol. 34 (6)‚ 1003–1009. Ibrahim‚ S.‚ Nienow‚ A.W.‚ 1996. Particle suspension in turbulent regime: the
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materials. Particles in each of the 3 states of matter behave differently. In a of particles. solid‚ the particles are very close and strongly attracted to each other. They can vibrate‚ but they cannot move from one place to another. They always stay in their positions‚ creating a defined shape and volume. In a liquid‚ the particles have weaker attraction and are not as close to each other as solids. They can move around in all directions so liquid does not have a defined shape‚ but their movements
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