Redox Titration Using Sodium Thiosulphate Abstract This experiment is to determine the concentration of oxidizing solution using the iodine/ thiosulphate titration where the reducing solution is potassium iodate solution and the oxidizing solution is sodium thiosulphate solution. Potassium iodate solution which is an oxidizing agent is added into an excess solution of acidified potassium iodide. This reaction will release iodine. Potassium iodide is acidified with sulphuric acid and the iodine released
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M5.06 Becoming an Effective Leader Evaluate own ability to use a range of leadership styles‚ in different situations and with different types of people‚ to fulfil the leadership role AC1.1 Using Goleman’s Situational Leaderships styles I Have used The Coaching Leadership Style “I Believe in You” and also The Democratic Leadership Style “What Do You Think” As Team Leader I have recently adopted the coaching style with a work college as we enter a period of transition in the IT Sector we move into
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Using these four passages and your own knowledge‚ assess the view that international diplomacy failed to achieve stability in Europe from 1919 to 1930. Initially‚ interpretation A presents the view that mutual pacts between Germany‚ Belgium and France helped peace in the region. These agreements would have allowed the possibility of future dealings as well as reducing post-war tensions; however‚ as interpretation D agrees‚ I believe this détente was an “illusion”. I believe the idea the agreements
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The hypothesis was supported by graph 3 and 6 which both showed that an increase in concentration of the reacting species resulted in an increase in reaction rate. Both graphs have a positive gradient which clearly indicates that concentration increases the reaction rate. The hypothesis also proposed that as temperature increases the speed of the reaction would decrease‚ this is evidenced in graph 7 which shows a negative decrease in time as the temperature of the solution increases. This decrease can
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Ammonia and Hydrochloric Acid Lab Chemistry 1 Abstract The straw should be cut shorter to 8 cm in order to make the solid ring appear in the center of the straw. We achieved our goal‚ cutting the straw caused the gases to not have to go as far‚ and meet in the middle. Background The particles in a gas are very loose and tend to move around a lot very quickly. The particles in a solid are very compact and vibrate but don’t really move very much. The particles in a liquid however are more
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of ATP‚ Adenosine Triose Phosphate. This occurs by converting glucose into pyruvate via glycolysis. Pyruvate is then transported into the mitochondrial matrix via active transport. Numerous reactions‚ catalyzed by a multi enzyme complex then occur‚ where the pyruvate is decarboxylated as shown in the reaction below. Pyruvate + NAD* + CoA ? acetyl CoA + reduced NAD + Carbon Dioxide This experiment shall be carried out via the manometric technique‚ where there are two different environments with
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.Experiment for Chemistry Coursework For this investigation I am looking at how the concentration of acid can change the reaction and how I can explain this using collision theory. My Prediction: I predict that the greater amount of concentration the faster the reaction will take place. Therefore‚ particles in the two compounds will collide faster. Due to my prediction if it is correct‚ I expect to see the cross on the paper disappear faster. As I already know that increasing one quantity
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Title : Investigation of Action of Saliva and 3 M Hydrochloric Acid in Two Carbohydrate Solutions Objective : To investigate the action of saliva and 3 hydrochloric acid in two carbohydrate solution Results Table1: Observation Conclusion Solution A Benedict’s test: Blue coloration turned to brick red precipitate. Reducing sugar is present in the solution A. Iodine test: The coloration remained unchanged. Starch is absent in solution A. Solution B Benedict’s test: The blue coloration
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area on the Rate of Reaction? By : 22/10/2013 The effect of changing the surface area on the rate of reaction? Unit Question: Should we speed things up or slow them down? Hypothesis: According to collision theory‚ should the surface area increase the amount of collisions increase increasing the rate of reaction. Therefore‚ my hypothesis is that when the surface area increases the rate of reaction increases
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b. 4- t-butyl- 3- ethyl-3 -1 propylnonane c. 1‚ 1 di- ethylcyclopentane d. cis – 1‚ 2- dimethylcyclopentane e. trans – 1‚ 3 – diethylcyclopentane 10. Write the combustion reaction of alkanes. HINT: Balance the element last (O2) a. alkane + O2 b. CH4 + O2 c. ethane + O2 d. e. f. 4- t-butyl-heptane
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