Title Experiment 17 Reaction Kinetics- Determination of the Activation Energy of the Reaction Between Oxalic Acid and Potassium Permanganate. Objective To determine the activation energy of the reaction between oxalic acid and potassium permanganate. Theory and Background Activation energy is the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo chemical transformation or physical transport. In terms of the transition-state
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Solute Concentration of Potatoes Block 2-2 Purpose: To determine the concentration of solute in the potato’s cytoplasm by measuring the change in mass after the process of osmosis. Materials and Equipment: Refer to Biology 12 Lab Manual – Investigation 13 Procedure: Refer to Biology 12 Lab Manual – Investigation 13 Data and Observations: The Potatoes change in mass after the process of Osmosis Test Tube # | Concentration of Sucrose
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monosaccharide reducing sugar (Kolej Mara Banting – Students’ Handbook for Biology HL Year 1). It is the simplest form of carbohydrate. In this experiment‚ sulphuric acid‚ H2SO4 and potassium permanganate‚ KMnO4 is added into glucose with different concentration and the time taken for the purple pink colour of potassium permanganate solution to change to colourless is recorded. This is because glucose donates electrons to the permanganate ions‚ causing it to change colour (Kolej Mara Banting – Students’
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are Concentration camps? All Jews were starting to get arrested because Hitler didn’t like them. The Jew’s population was going down every day because Hitler was arresting them and killing them. The first Concentration camp opened in Germany in 1933. The police and local civilian authorities organized numerous detention camps. The Nazi controlled Europe between 1938 and 1945. What is a Concentration camp? What is the purpose of a Concentration camp? What is it like to live in a Concentration camp
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positive relationship between catalase concentration and the rate of reaction. This means when catalase concentration increases‚ the rate of reaction also increases. In other words‚ at 20% catalase concentration‚ the rate of reaction was only 4.220 mm/s while at 100% catalase concentration‚ the rate of reaction was 7.704 mm/s. This proves the positive correlation between catalase concentration and the rate of reaction. This occurs because as the enzyme concentration increases‚ there are more enzymes available
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I am going to investigate osmosis when potato is placed in different concentrations of sucrose. I am aiming to witness osmosis in 5 different concentrations of sucrose. I will use 5 varying concentrations so that I have a wider spread to compare the results‚ and check that I don’t have any anomalies Prediction Osmosis is the process of diffusion of water molecules from a weaker solution into a stronger solution‚ through a semi permeable membrane. The tiny pores in the membrane
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this experiment‚ I am going to see if temperature affects the reaction rate between marble chips and hydrochloric acid by timing the release of carbon dioxide in the reaction. I predict the higher the temperature‚ the faster the reaction rate. This is due to the kinetic theory. The more heat that is given to matter‚ the faster the particles move. This happens in the acid‚ so the faster the particles move‚ the faster the reaction rate due to more collisions between the marble chips and the acid
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Gypsies‚ homosexuals‚ etc. being killed‚ ten or twenty or maybe even fifty at a time. Some are burned alive. Some are gassed until death finally kills their immune system. The others take on the cruelest punishment. They’re forced to work in concentration camps where they are split up from their family and children. Children who couldn’t work were forced to death‚ some mothers coming along with their children if they refused to cooperate with giving their kids up. We ask ourselves‚ what made these
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Communist Party of the Philippines (CPP)‚ and the Muslim separatist movement of the Moro National Liberation Front (MNLF). One of his first actions was to arrest opposition politicians in Congress and the Constitutional Convention. Initial public reaction to martial law was mostly favourable except in Muslim areas of the south‚ where a separatist rebellion‚ led by the MNLF‚ broke out in 1973. Despite half-hearted attempts to negotiate a cease-fire‚ the rebellion continued to claim thousands of military
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of higher concentration to areas of lower concentration. Osmosis is a special kind of diffusion where water moves through a selectively permeable membrane that only allows certain molecules to diffuse though (Lab Manual 7e‚ 2010). Diffusion or osmosis occurs until dynamic equilibrium has been reached. This is the point where the concentrations in both areas are equal and no net movement will occur from one area to another. If two solutions have the same solute concentration‚ the solutions
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