concentration‚ and substrate concentration on reaction rates of an enzyme-catalyzed reaction in a controlled experiment; and • Explain how environmental factors affect the rate of enzyme-catalyzed reactions. Hypothesis: When one mixes catalase and hydrogen peroxide with sulfuric acid for a short period of time‚
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Chapter I: Introduction A. Background of Study Baking soda was traditionally used as a tooth cleaner before commercial toothpaste became available. Combined with peroxide‚ it makes a potent teeth whitener for much less than expensive whitening toothpastes or strips. Being a naturally occurring compound‚ baking soda is safe for cleaning teeth to a certain extent. It has the property of neutralizing agents that are responsible for causing discoloration and foul
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Lab Report #1 Title: Synthesis of Divanillin Abstract: The purpose of this experiment was to synthesize divanillin. This was done via the oxidative dimerization of two equivalents of vanillin‚ using enzyme horseradish peroxidase as the catalyst. Procedure: Lab Handout: Nishimura‚ R.T.; Giammanco‚ C.H.; Vosburg‚ D.A. J. Chem Educ. 2010‚ 87‚ 526-527. Discussion: Mechanism: Reaction 2 Vanillin H2O2 Divanillin 2 H2O
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pin and in your bone‚ especially in cases where the pins stick out of the skin. Supplies needed: Hydrogen peroxide. Saline solution. Germfree (sterile)
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oxidation of hydrogen peroxide to lower activation energy‚ speeding up the reaction. The activity of peroxidase is highly dependent on its environment and most importantly the pH level. Peroxidase has been the focus of many recent studies and is believed to possibly reduce swelling among other things. We conducted an experiment testing the effect different levels of pH had on the reaction rate of peroxidase. In the experiment we created different solutions all containing hydrogen peroxide‚ peroxidase
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formed by chemical reactions. In order to extract the gas I will use several household products such as vinegar‚ baking soda‚ water‚ and hydrogen peroxide in order to create the gases to be tested. Materials: Student Provided 1 Match 1 Toothpicks (or wooden splints) 1 Pie tin or similar 1 Marker pen 1 Household white vinegar 1 3% Hydrogen peroxide (H2O2)
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As soon as the wax is gone‚ you will feel good again. Below we list our best natural ways to get rid of earwax. Hydrogen peroxide against earwax Mixing hydrogen peroxide with the same amount of water. Make sure the hydrogen peroxide has a strength of 3%. Apply a few drops in the ear and shake your head gently to let the mixture get into the ear canal. After a few minutes‚ tilt your head in the opposite direction to allow
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Decolorization and Chemical Oxygen Demand Reduction (COD) of Simulated Textile Wastewater using Fenton’s Reagent Submitted to: Eric Siy COE 5100 – Statistical Research and Design Chemical Engineering Department College of Engineering De La Salle University – Taft‚ Manila by MARIA KATRINA A. PULUTAN MS Chemical Engineering 1st Trimester AY 2010-2011 1. INTRODUCTION Nature is threatened by the environmental contamination caused by the wastewater produced and discharged every day
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reaction. The suggested optimum will be 10g as the higher the mass of catalase the more enzymes‚ meaning more space for reactions to occur. In the space given there will be more enzymes reacting with the substrate‚ which in this experiment is hydrogen peroxide (H2O2)‚ until it has reached its optimum‚ where the volume of oxygen produced will not increase due to the fact that there will not be enough H2O2 left for the enzymes Quantitative Hypothesis By doubling the mass of potato‚ the rate of
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or active oxygen species are oxygen that is more energetic compared to the normal molecular oxygen. They are unstable and are formed either through loss of electrons or addition of protons. For example super peroxide anion (O2.-) and protonated per hydroxyl radical (H2 O2-)‚ hydrogen peroxide‚ H2 O2 and hydroxyl radical OH. (Smirnoff‚ 2007). . When these species are in the body‚ they become threats to cells
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