"In the extraction of spinach experiment the first band coming off the column ended up as the highest spot on the tlc plate" Essays and Research Papers

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    Spot and Forward Rate

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    Spot Rate and Forward Rate Spot Rate: It is nothing more than the YTM on bond. It is the rate of interest on bond maturing at any time in the future. It is also known as geometric average of 1 year forward rates in the future. Hence‚ YTM on bonds can be calculated as: When forward rates are given then; oS1 = oF1 oS2 = [(1+of1)(1+1F2)](1/2) -1 oS3 = [(1+of1)(1+1F2)(1+2F3)](1/3) -1 and so on. Forward Rates: It is the interest rate established today ‚ that will be paid on money to

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    Rubber Bands

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    Rubber bands are worthless and unreliable. They cannot be trusted to repeat a performance even under identical conditions. If one decides that they will risk a grade on the reliability of a rubber band‚ they are setting themselves up for dire results and disappointment. The assignment was to create a small car‚ built mainly from cardboard‚ powered by rubber bands. The rubber bands were wound tightly around an axel. After the car was released‚ the elasticity of the rubber bands would pull the

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    plate tectonics

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    1. Compare the age of igneous rock found near the mid-ocean ridge with that of igneous rock found farther away from the ridge. The ages of the igneous rock found near the mid-ocean ridge was younger than the igneous rock found farther away from the ridge. This is because of convection currents. Magma rises because it is less dense. It is forced out of the ridge‚ it spreads apart‚ and when it cools‚ it becomes new seafloor. This is why newer seafloor (igneous rock) is younger when it is closer to

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    In this experiment‚ 0.0039 g of pure caffeine was isolated from tea leaves. This was done through solid-liquid extraction followed by multiple liquid-liquid extraction. Then crude material obtained was then purified by sublimation. The isolated caffeine was subjected to thin layer chromatography (TLC) together with a standard caffeine. The Rf value obtained for both isolated caffeine and standard caffeine was 0.24. Keywords: solid-liquid extraction‚ multiple liquid-liquid extraction‚ sublimation

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    the United States had ever seen. It had devastating effects on the United States and virtually every other country in the world. The United States suffered through hard economic times until 1941‚ when the Depression officially ended. There is a lot of debate on what ended the Great Depression‚ some say FDR’s “New Deal” programs got the economy rolling again; others credit it to World War II. Without Franklin Delano Roosevelt’s “New Deal”‚ the United States would have never recovered as fast as it

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    Elastic Band

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    ELASTIC BAND PRACTICAL Introduction The elastic band‚ or rubber band as it is sometimes known‚ is an item that is generally taken for granted today. Because of their unique elasticity‚ they have many purposes. The main purpose is for storage but they can also be used for crafting. Elastic energy only lasts for a short period of time but is comparatively strong. Aim To investigate the amount that a rubber band is stretched when consistently increasing amounts of weights are placed Hypothesis

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    The Mobius Band

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    The Mobius band is a one-sided surface that is constructed from a rectangle by holding one end fixed‚ rotating the opposite end through 180 degrees‚ and joining it to the first end. The Mobius band is much like the argument of whether or not we should implement drug tests on secondary school and pre-secondary school students because‚ like the Mobius band‚ it only has one side. Students ought to be drug tested for cigarettes‚ marijuana‚ and both licit and illicit drugs. Children are the future of

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    Sealed Off

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    The short story by Ailing “Sealed Off” has various levels and interpretations of the title. The first being the war background and what happened throughout the city. Shanghai grew quiet every time an air raid attack happened when the Japanese frequently bombed them during the Second Sino-Japanese War. When these air raid attacks happened the city would seal off temporarily. The tramcars would halt and seal off as well‚ and whoever was in the tramcars would be stuck inside until the raids were over

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    Chapter One The theory of plate tectonics explains how forces within the planet create landforms. This theory views Earth’s crust as divided into more than a dozen‚ rigid‚ slow-moving plates. Some plates are as large as a quarter of the planet‚ but others are only a few hundred miles across. The plates slowly move across the upper mantle‚ usually less than an inch per year. Scientists use the theory of plate tectonics to explain the long history of Earth’s surface. They believe that about a few

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    P Plate Drivers

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    “P” plate drivers and fatal traffic accidents‚ continues to be a serious public health concern with the main age group being between 17-25 (Transport for NSW 2013a). P plate drivers are 33% more likely to have a crash than L plate drivers (Monash University 200). This is due to a number of factors such as: Inexperience Poor decision making Willingness to take risks whilst driving The influence of peer pressure Alcohol and drug use Stress and fatigue. Young drivers are constantly shown

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