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Graduated Cylinder Sodium Chloride
1,507 wordsObjective: To practice the various techniques of measuring masses using the lab balance. Then to gain the experience in the techniques of handling lab equipment. 1. Check your balance to make sure that the pointer is calibrated or zeroed. If necessary, consult your teacher for an adjustment. 2. Place a penny on the balance pan. Move the riders until the pointer is balanced. Record the mass of the penny. 3. Repeat step two for objects listed below. -Measure and record the mass of a watch glass. -...
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Concentration And Reaction Rate
1,776 wordster> How concentration affects reaction rate. The aim of this investigation is to see how the concentration of a reactant in ratio to the reactor affects the rate of a reaction. When hydrochloric acid and Thiosulphate react together sulphur is liberated this means that as the reaction goes on the solution will become yellow and will change from being transparent to translucent to opaque. The sulphur is formed as a solid but not in the usual precipitation way. Na 2 + S 2 + 2 HCL 2 NaCl+...
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Sir Robert Peel Community Based Policing
2,029 wordsCommunity-Based Policing: Law Enforcement For The Twentieth Century by KONSTANTINOS I. KORIAS. ENGLISH COMPOSITION PROFESSOR CHUCK NILES (MONDAY NIGHT CLASS) OUTLINE Thesis: Community-based policing provides hope for the future of Law enforcement. I. Introduction to C. B. P. A. The roots of C. B. P. B. So what is community? II. The two elements of C. B. P. law enforcement philosophy are: A. Community partnership. B. Problem solving. III. The reaction of police to change. IV. The future of C. B. ...
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Intelligence Intelligence Tests
1,937 wordsDefinition: Intelligence Testing In reviewing the text, I found the definition of intelligence testing to be very simple; testing used to measure intelligence. Two definitions found on an Internet site at dictionary. com are: (a) A standardized test used to establish an intelligence level rating by measuring a subjects ability to form concepts, solve problems, acquire information, reason, and perform other intellectual operations. (b) A psychometric test of intelligence; they used to think that ...
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Sodium Chloride Permeable Membrane
2,568 wordsScenario Plants in the soil have their roots in a dilute solution of mineral ions. When they are suddenly flooded with seawater, concentration of which is 0. 3 molar Sodium Chloride, they are observed to wilt and become flaccid. Aim The aim of this experiment is to investigate the movement of water into and out of plant cells by osmosis. The cells chosen for study will be taken from potato tubers as they provide a ready supply of uniform material. Background Information Any substance dissolved i...
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Measuring Cylinder Reaction Rate
3,430 wordsHow concentration affects reaction rate. The aim of this investigation is to see how the concentration of a reactant in ratio to the reactor affects the rate of a reaction. When hydrochloric acid and Thiosulphate react together sulphur is liberated this means that as the reaction goes on the solution will become yellow and will change from being transparent to translucent to opaque. The sulphur is formed as a solid but not in the usual precipitation way. Na 2 + S 2 + 2 HCL 2 NaCl+SO 2 + S 2 +H 2...
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Cm Measuring Cylinder
4,557 wordsPhysics CAT One Extended Untitled Physics CAT One Extended Practical Investigation Report Student Number: Purpose The Purpose of this investigation is to explore how the terminal velocity of a sphere falling through glycerol varies with the temperature of the glycerol and the size of the sphere. Introduction In the early stages of the project it was intended to investigate how the speed of a sphere falling through glycerol varies with the size of the sphere. However, after analysis it was decide...
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Unwelcome Sexual Consumer Behavior
4,012 wordsThe most common form of evidence is statistics. Statistics are a favorite evidence of many writers and speakers. They provide actual numbers in support of ideas and conclusions. If you can show that 75 % of high schools seniors cannot find Washington State on a map of North America, then it is strong evidence for your contention that high school seniors are not being taught the geography of the United States. Such evidence is not only difficult to refute, its often accepted as the final word in ...
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