EXPERIMENT 2: COMMON-ION EFFECT AND BUFFERS MARVILE REA R. FERRER1 1DEPARTMENT OF MINING‚ METALLURGICAL & MATERIALS ENGINEERING‚ COLLEGE OF ENGINEERING UNIVERSITY OF THE PHILIPPINES‚ DILIMAN‚ QUEZON CITY 1101‚ PHILIPPINES DATE SUBMITTED: DECEMBER 13‚ 2012 DATE PERFORMED: DECEMBER 07‚ 2012 ______________________________________________________________________________________________________________ INTRODUCTION Monitoring the pH range of a laboratory reaction or a process is very
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President‚ Secretary‚ Treasurer‚ Personal Relations and Head Cultural (cultural chair). 2. The Executive Board will meet at least twice a month. 3. Executive Officers are authorized to speak and act to further benefit the interests of Liga Filipina. 4. Executive Officers are responsible for
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Ideal gases: No volume‚ no intermolecular forces Atoms/Molecules that are gases at room temperature Noble Gases. H2‚ N2‚ O2‚ F2‚ Cl2. Methane‚ ethane‚ propane‚ butane Gas: Fills the container. Forces of intermolecular attraction are weak. Vapor: Gas state of a substance that is usually a liquid or solid Ek = (Kinetic energy of a gas molecule) Mu2/2. U2 = 3 (R Gas Constant) (Temperature in Kelvin) / molar mass in kg Speed goes Up with temp and down with mass Pressure: Collisions with the side of a
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another substance called? The ability of one substance to dissolve in another is called solubility. 2. What are the three properties of matter? The three properties of matter are gas‚ solid‚ and liquid. 3. What is matter made up of? Matter is made up of tiny particles. 4. Compare and contrast the movement of particles in solids‚ liquids‚ and gases. Solids: They move back and forth. They do not change places with each other‚ and they have a definite shape. Liquids: Changes
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Step 1 A. EasyBeds is a hotel chain operating in Europe and recently expanded into the Asian market. The last two years it operates a small- capacity hotel in Shanghai. The strategy of the business is to provide customers with int’l service standards but at a significantly low cost base. As a result‚ their competitors are 5* hotels‚ but the level of their prices are just above 2 to 3* hotels. To manage that they offer their clients only basic services. In addition‚ their client mix includes both
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PROPERTIES OF SOLUTIONS A solution is a mixture of materials‚ one of which is usually a fluid. A fluid is a material that flows‚ such as a liquid or a gas. The fluid of a solution is usually the solvent. The material other than the solvent is the solute. We say that we dissolve the solute into the solvent. Some solutions are so common to us that we give them a unique name. A solution of water and sugar is called syrup. A solution of sodium chloride (common table salt) in water is called brine
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Properties of Substances- Gr.12 Chemistry Final Lab Report Lab: Properties of Substances M. Nguyen SCH4U April 27‚ 2012 Abstract The purpose of this experiment was to use a variety of tests to identity the type of bonds which are present in each solid. Various substances (paraffin wax‚ sucrose‚ sodium chloride‚ tin‚ and silicon dioxide) were experimented and identified with tests for hardness‚ solubility‚ conductivity‚ and the time for the solid to melt with a candle and Bunsen burner
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Lab #6 Properties of Hydrates Purpose: The purpose of the “Properties of Hydrates” lab is to study hydrates‚ and be able to identify them. This lab also focuses on observing the reversibility of hydration reactions by hydrolysis‚ and also testing substances for efflorescence of deliquescence. Procedure: A. Identification 1. Place 0.5 grams of each compound (Nickel Chloride‚ Potassium Chloride‚ Sodium Tetraborate‚ Sucrose‚ Calcium Carbonate‚ and Barium Chloride) in a small dry test
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process of distillation. Distillation is the separation of volatile substances mixed with nonvolatile substances by boiling the mixture to alter the phase of the volatile substance. The researchers used the simple distillation set up to conduct the experiment. 25 ml of The Bar Vodka was used and 7 ml of distillate was collected before a temperature of 95 degrees Celsius was reached. Collected distillate was then subjected to a flammability test to confirm ethanol content. The percent ethanol was computed
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An intensive property is a physical quantity whose value does not depend on the amount of the substance for which it is measured. For example‚ the temperature of a system in thermal equilibrium is the same as the temperature of any part of it. If the system is divided the temperature of each subsystem is identical. The same applies to the density of a homogeneous system: if the system is divided in half‚ the mass and the volume change in the identical ratio and the density remains unchanged. According
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