I) INTRODUCTION * Industrial Chemistry deals with the preparation of products from raw materials through the agency of chemical change * Chemistry is important to Industry by: * Regulating manufacturing processes * Quality Control * Research and Development * Sources of raw materials from the natural environment 1) Lithosphere –Earth’s Crust 2) Hydrosphere – Marine and Oceanic Environment 3) Atmosphere – Air 4) Plants – Biosphere * Classification of Natural
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of this investigation is to study and observe whether or not the concentration of hydrogen peroxide (varying from 10 – 30 millilitres) affects the rate of reaction. Hypothesis: With the increase of the concentration of Hydrogen Peroxide 3% substrate‚ I prediction that the rate of pressure increase will begin to amplify. The pressure is bound to increase because the catalase quickly reacts with the hydrogen peroxide; this is why the more substrate that is added to the enzyme‚ the higher amount of
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affect the activity of a catalase -To experimentally test for the presence of catalase in living tissue -To analyze factors affecting enzyme activity -To determine the affect of particle size on enzyme activity Materials: 3% Hydrogen Peroxide Scissors Straight-edge razor blade 10 Test Tubes Mortar and Pestle Blender/Food Processor Test Tube Rack Distilled Water Pipette Goggles Manganese Dioxide Stirring Rod Fresh Chicken Meat Forceps Fresh Apple Thermometer Fresh Carrot
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bleach‚ hydrogen peroxide‚ and isopropyl alcohol‚ were tested. This was done by creating aqueous solutions of staphylococcus epidermidis bacteria and a chemical agent. The solutions were then incubated on an agar petri dish for 24 hours. The quantity of staphylococcus epidermidis bacteria colonies that were grown were used as an indicator of how effective each agent was in killing the bacteria. Each bactericidal agent has its own mechanism for killing bacteria. Both bleach and hydrogen peroxide are
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reacting with hydrogen peroxide (H2O2). To address the latter question a series of experiments were conducted. The various temperatures experimented with were as follows: 22 degrees Celsius (room temperature)‚ 0 degrees Celsius (freezing)‚ 100 degrees Celsius (boiling)‚ and 37 degrees Celsius. Along with variations in temperature‚ the experiment involved different amounts of the two solutions being used. Using a spot plate containing 12 wells the different mixtures of hydrogen peroxide and water were
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happen in the experiment. Give your reasons and outline any assumptions that lead you to this hypothesis. I’m guessing that the liver will turn the peroxide into something else‚ or make it change. Experimental Design List the materials used in this lab‚ and the procedure you followed. Materials: Commercially available bottle of hydrogen peroxide‚ from drugstoreLiver‚ either chicken or beefAn onionA small potatoAn Apple (peeled)Wooden sticks (can be the ones used for shish kebobs)MatchesSharpie
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Investigation Aim: The aim of the investigation was to investigate the effect of substrate concentration Hydrogen Peroxide H O (in %) on the rate of reaction of the enzyme catalase (in 1/mean time). Prediction: As the substrate concentration (hydrogen peroxide) in % increases the rate of reaction in 1/mean rate increases until the solution becomes saturated with the substrate hydrogen peroxide. When this saturation point is reached‚ then adding extra substrate will make no difference. The rate steadily
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promotes the conversion of hydrogen peroxide‚ a powerful and potentially harmful oxidizing agent‚ to water and oxygen. Catalase also uses hydrogen peroxide to oxidize toxins including phenols‚ formic acid‚ formaldehyde and alcohols. Catalase is an example of a particularly efficient enzyme. Catalase has one of the highest turnover numbers for all known enzymes (40‚000‚000 molecules/s). This high rate shows an importance for the enzymes capability for detoxifying hydrogen peroxide and preventing the
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on the reaction rate of an enzyme IB biology Internal Assessment 3/23/12 Research Question: Effect of changes in substrate concentration amount on the reaction rate of an enzyme Introduction: In this experiment‚ the substrate is hydrogen peroxide. The purpose of this investigation is to find out the relationship between the substrate concentration and the rate of reaction. Substrates are molecules that are acted upon by enzymes. For instance‚ amylase‚ an enzyme found in saliva‚ helps
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Activity of the Enzyme Catalase in breaking down Hydrogen Peroxide and the effect of various factors on Enzyme Activity Introduction The enzyme catalase is present in cells in order to speed the breakdown of hydrogen peroxide (H2O2)‚ which is a toxic chemical to the human body. When hydrogen peroxide is broken down‚ the end products are Water (H2O) and Oxygen (O2). In this report‚ the reaction of catalase to hydrogen peroxide is being tested. Furthermore‚ the effects of temperature‚ concentration
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