June 21‚ 2013 Title: Properties of Gases Purpose: To analyze a few physical and chemical properties of gases as well as using those properties to identify the gases. Procedure: * For Hydrogen I placed a piece of Zn metal into a test tube with diluted HCl. * To produce oxygen I added Hydrogen peroxide to manganese. * Next‚ I added baking soda to vinegar. This caused a quick and energetic reaction! The gas from the reaction I pumped into some Limewater. * Then I mixed Alka Seltzer
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your hands thoroughly with soap and water. 3. Put on the gloves. 4. Suction the tracheostomy tube. 5. Remove the inner cannula. 6. Insert the fenestrated cannula. 7. Hold the inner cannula over the basin and pour the hydrogen peroxide over and into it. Use as much hydrogen peroxide as you need to clean the inner cannula thoroughly. 8. Clean the inner cannula with pipe cleaners or a small brush. 9. Thoroughly rinse the inner cannula with normal saline‚ tap water or distilled water. 10. Dry the inside
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chemical reaction • Biocatalysts or enzymes are biological catalysts that speed up the metabolic reactions that occur in the body Catalase 2 H2O2 ⇄ H2 O + O2 3% of hydrogen peroxide in water at 37ºC a = no catalyst added b = with Fe3+ salt c = with enzyme (catalase) Hydrogen peroxide • Hydrogen peroxide is a waste product of metabolism‚ and if it left in the cell‚ it would initiate the formation of free radical Activation energy • The amount of energy that must be acquired
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Hypothesis: I hypothesis that the enzyme concentration will affect the rate of reaction but only up until a certain point because there is a limited supply of substrate. Enzymes are protein molecule that acts as biological catalyst by increasing the rate of reactions without changing the overall process. They are long chain amino acids bound together by peptide bonds. Enzymes are seen in all living cells and controlling the metabolic processes in which they converted nutrients into energy and new
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this lab students measured the height of the foam after catalysis between catalase (enzyme) and 7 other (solutions) to determine which solution had the fastest reaction rate.. The control variable of the experiment would be the solution of only hydrogen peroxide‚ water‚ and catalase. The independent variables of the experiment were the abiotic factors such as PH level‚ temperature‚ and the amount of salt within the environment. The dependent variable of the experiment would be the height of the foam(product)
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INVESTIGATION INTO THE EFFECT OF TEMPERATURE ON CATALASE ACTIVITY AIM The aim of this experiment is to find out the effect of temperature on catalase or hydrogen peroxide. This will enable us to tell at what temperature hydrogen peroxide is most efficient. This (degradation) reaction will help us determine some of the catalase’s different attributes. HYPOTHESIS In this experiment it would be safe to hypothesise that no activity would take place at 1 to 20 degrees. It would be probable that a
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Activators are molecules other than the substrate that interact with the active site and they help increase the rate of reaction. Inhibitors bind and react with the side chains and slow the rate of reaction. In this experiment‚ hydrogen peroxide (H O ) acted as the substrate being broken down while 2 2 the catalase was the enzyme. The hydrogen peroxide formed a decomposition reaction as it was broken down to water (H O) and oxygen (O ). The balanced equation is evident below. 2 2
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the activity of the enzyme catalase. Introduction Hydrogen peroxide (H2O2) is a very pale blue liquid which appears colourless in a dilute solution‚ slightly more viscous than water. It is a weak acid. It has strong oxidizing properties and is therefore a powerful bleaching agent that is mostly used for bleaching paper. Catalase is a common enzyme found in all living organisms. Its functions include the conversion of Hydrogen Peroxide‚ a powerful and potentially harmful oxidizing agent‚ to
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identified. Enzymes can be classified into several categories such as hydrolytic‚ oxidizing‚ and reducing. One of the simplest biological reactions by an enzyme is the breaking down of hydrogen peroxide by the enzyme catalase. This reaction is a very essential life process since the metabolic waste product‚ hydrogen peroxide‚ is toxic to the cell in high amounts. Catalase is a very efficient enzyme‚ it has one of the highest rates of reaction among all of the enzymes. Enzymes have high specificity‚ generally
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Aims The aims of this investigation are: 1. To find the rate equation of the reaction of hydrogen peroxide and iodide ions. This will be achieved by using an iodine clock method and colorimetric analysis. 2. Draw a graph of rate against concentration for each reactant (Hydrogen peroxide‚ potassium iodide and H+ ions). 3. Finding the order for each reactant 4. Finding the rate-determining step. 5. Proposing a mechanism for the reaction. 6. Using Arrhenius’ equation to find the activation
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