after a magnet. The spin was set to 700 rpm‚ and hydrogen peroxide was injected through a needle into the flask while spinning. Timing began as soon as the hydrogen peroxide was inserted. Once nine milliliters was reached timing stopped. The reaction flask was cleaned after every run. Materials: Concentrations: 100%‚ 70%‚ 50%‚ & 30%; (1) eudiometer‚ (1) Large beaker‚ (1) hose‚ (1) magnet‚ (1) flask‚ spinner‚ (1) needle containing hydrogen peroxide‚ and water Results: Table 1 Concentration
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EFFECT OF TEMPERATURE‚PH AND SUBSTRATE CONCENTRATION ON ENZYME ACTIVITY | Aim To investigate the effect of Temperature‚Ph and substrate concentration on the rate of enzyme activity. Hypothesis
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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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[6] © UCLES 2009 0653/06/M/J/09 [Turn over 4 2 The teacher gives a student a piece of zinc and some dilute hydrochloric acid. The student uses the apparatus in Fig. 2.1 to investigate the speed of reaction of the zinc and hydrochloric acid. hydrogen measuring cylinder For Examiner’s Use zinc dilute hydrochloric acid 100 Fig. 2.1 • • • The student places 4 cm3 of the acid in a test-tube. He starts his clock. Every minute‚ he records in Fig. 2.2 the total volume of gas collected in the measuring
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Area process consists of both automated and manual activities. Small quantities of raw materials (such as hydrogen peroxide and parabens) are added manually‚ while the addition of larger quantities is automated. Hydrogen Peroxide is often added to the R-10 Tank (via PR-1) tank in order to neutralize chlorine and provide anti-microbial protection. The use of Perone‚ common name Hydrogen Peroxide‚ is a corrosive substance that poses risk to the employees. Based on chemical splashing concerns‚ the hazard
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Introduction The purpose of this lab report was to test and measure the rate of substrate destruction by an enzyme‚ we tested the destruction of hydrogen peroxide by the enzyme catalase. Hydrogen peroxide is a poisonous by product of metabolism that can damage cells if it is not removed. Catalase is an enzyme that speeds up the breakdown of hydrogen peroxide into water and oxygen gas. H2O2 + catalase → H2O + O2 A catalyst is a substance that lowers the activation energy required for a chemical
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MAJENGO SECONDARY SCHOOL CHEMISTRY TEST FORM VI JULY 2013 TIME: 2 HOURS SECTION A Answer all questions 1. a) A coordination compound has a formula Co Cl3. 4NH3. It does not liberate ammonia but precipitates one mole of chloride ions with Ag No3. i. Give IUPAC name of the complex ii. Write it’s structural formula a) Give chemical tests to distinguish [Co Br (NH3) 5] S04 and [Co (NH3)5 SO4] Br 2. Give IVPAC Names of the following i. K2 [ptF6] ii
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Effects of Enzyme Catalysis of H2O2 by Catalase Report by: Timmy Lin (#269164729) October 17‚ 2011 Mr. Rienzi AP Biology Problem: Measuring the effects of Catalase enzymes on hydrogen peroxide decomposition. Measuring the rate of the reaction when hydrogen peroxide and Catalase are mixed at the same ratio for different time (10‚ 20 30 60 120 180 360 seconds). Background: Enzymes are biological catalysts that carry out cellular metabolic processes with the ability to enhance the rate
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the most abundant thing in the universe? Hydrogen is the answer! Now with a little bit more refining it will be. Good morning fellow students today I will be talking about hydrogen powered vehicles. Firstly‚ some terms need definition.Hydrogen- a colourless‚ odourless‚ flammable gas which is the lightest and simplest of all known elements.Vehicle- A device or structure for transporting persons or things. Secondly‚ now to explain the ways to use hydrogen as a fuel. The first way is called electrolysis
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Taheebo extract on these cells. The three serial extracts were selected for the study of regeneration on antioxidant enzyme activities because butanol and water extracts significantly affected cell survival. Treatment of hydrogen peroxide on the cells showed a dramatic repression on superoxide dismutase (SOD) and cytosolic NADPH + - dependent isocitrate dehydrogenase (IDPc) activities with the remaining activities of 56.1 and 37.5%‚ respectively. The three In Vitro Antifungal
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