Experiment 18 Chemistry 101 Redox Titration: Determination of the Percentage of Iron in a Sample INTRODUCTION The concentrations of redox-active species can be determined by redox titrations. In a redox titration‚ a measured sample of the unknown is titrated against a standard solution of a substance that will oxidize or reduce the unknown. In the present experiment you will take a sample containing iron‚ add acid to dissolve it [thereby converting all the iron to iron(II)]‚ then
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Batch Reactor Aim/Objective The aim of this experiment is to compare the theoretical conversion for a saponification reaction to the experimentally determined conversion in a batch reactor under constant temperature conditions. Experimental Procedure The first step was to ensure the electrical supply to the rig was turned off and that the Armfield batch reactor was empty and clean. 500mL of 0.1M sodium hydroxide solution was then added manually. The pump and stirrer were then set to
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Continuity Equations Continuity equation is a equation that explain the transport of a conserved quantity. Since‚ mass‚ energy‚ momentum are conserved under respective condition‚ a variety of physical phenomena may be describe using continuity equations. By using first law of thermodynamics‚ energy cannot be created or destroyed. It can only transfer by continuous flow. Total continuity equation (TCE)‚ component continuity equation(CCE) and energy equation(EE) is applied to do mathematical model
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PHYSICAL EDUCATION (875) Aims: 1. To create awareness of the necessity for vigour and efficiency through physical fitness. 2. To develop knowledge and understanding of the requirements of healthy living‚ nutrition‚ exercise and relaxation. 3. To create awareness of the necessity to develop a good posture and physical poise. 4. To develop knowledge and understanding of skills that will be useful as leisure time activities and those of a recreational nature. 5. To create opportunities to develop esprit
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Physical Therapists help injured or ill people to improve their movement to manage their pain; therefore therapies show an important part of the rehabilitation‚ treatment‚ and prevention of the patients with chronic conditions‚ illnesses‚ or injuries. When typically being a Physical Therapist to work in private offices‚ clinics‚ hospitals‚ and nursing homes. Therapists spend much of their time on their feet because they are actively working with each of the patients. A Physical Therapist has to at
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This report covers the analytical snapshot of famous local jewel brand “Glaxose D”. The brand has remained in the heartland of Pakistani FMCG’s industry since early 1970’s and has passed through many different stages from growth to slump. Currently this brand is facing immense problem of weak and irrelevant brand image‚ due to fading brand health‚ Glaxose D needs to get aggressive attention in order to pop up as a running brand. We have conducted a detailed scrutiny on this brand and the reader
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Lesson Plan in Physical Education (P.E.) IV I. Objectives A. Describes the correct concept of good posture; B. Exhibits the value of discipline; and C. Demonstrates the correct sitting and standing postures. II. Subject Matter A. Topic Correct Body Posture B. References Lesson Plans in Physical Education 4. (2008). Fundal‚ M. J. et. al. Malones Printing Press and Publishing House: Iloilo City‚ Philippines‚ pp. 1 – 6. Lesson Plans in Physical Education 5. (2008)
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transfer of valence electron(s) between atoms. It is a type of chemical bond that generates two oppositely charged ions (Larsen‚ 2010). Element that have a positive ion are able to bond with elements with negative ions. This is because the elements share the electrons so that the ionization becomes neutral and both atoms become stable. Materials: 1. Cards with elements and positive or negative ions. 2. Reference Tables for Physical Setting/CHEMISTRY 2011 Edition: Periodic Table of the Elements
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CHEMICAL PARAMETERS OF FRESHWATERS Objectives At the end of this section‚ students should be able to 1. Distinguish between freshwaters and seawater in terms of ionic composition. 2. Describe the variation of ionic composition in natural freshwaters and other inland waters. 3. Explain the factors that contribute to such variation. 4. Describe Gibbs’ model that explains the major factors contributing to variation in chemical composition of inland waters. 5. Explain
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REVIEW SHEET EXERCISE 8 Chemical and Physical Processes of Digestion NAME: LAB TIME/DATE: Carbohydrate Digestion The following questions refer to Activity 1: Assessing Starch Digestion by Salivary Amylase. 1. At what pH did you see the highest activity of salivary amylase? Why? 2. How do you know that the amylase did not have any contaminating maltose? 3. What effect did boiling have on enzyme activity? Why? 4. Describe the substrate and the subunit product of amylase
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