Chemical Kinetics of Hydrogen Peroxide Decomposition Purpose The purpose of this experiment was to determine the rate equation for the catalyzed decomposition of hydrogen peroxide H2O2. Procedure The procedure for this lab can be found on pages 36 - 40 in “General Chemistry CHE111L Laboratory Manual Spring 2014.” Data Tables Carbon copies of data tables and the graph have been attached to the back of this lab report. Calculations 30 mL of
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An Investigation on the rate of reaction of the enzyme Catalase on the substrate Hydrogen peroxide. Plan Aim: To investigate the rate of the effect of Catalase on hydrogen peroxide. Introduction This investigation will be carried out to investigate the rate of reaction of the enzyme catalase on the substrate hydrogen peroxide. Enzymes are biological catalysts‚ which speed up the rate of reaction without being used up during the reaction‚ which take place in living organisms. They do this by
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that Affect the Rate of Reaction of the Decomposition of Hydrogen Peroxide Emilio Lanza Introduction- In this experiment‚ the rate of reaction‚ calculated in kPa sec-1‚ of the decomposition of hydrogen peroxide will be investigated to see how the change in concentration of hydrogen peroxide and the change in temperature affect the rate of reaction. The data will be collected by measuring the gas pressure. The product of Hydrogen Peroxide is oxygen in a gas state thus it is mandatory to use the
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Fenland Celery: The Winter Asparagus We could all be forgiven by thinking that celery is celery‚ but in fact the main crop of celery in the UK stops being grown around October depending on the (currently very unseasonal) weather. The frosts would destroy a normal crop grown by normal methods. So how does Fenland Celery manage to be grown right up until the end of the year? Indeed this year it could be until mid-January. We’ve taken a look at this heritage crop‚ which sees its origins at Christmas
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stage while the larvae needs brackish water and usually found in estuaries (Galitzine and Morgan‚ 2009). This species of prawn is a tropical living animal which needs warmer temperatures more than 18°C for growth process. (Dasgupta‚ 2005). However‚ for culture process‚ the optimal production of the prawns needs minimum temperature at 82.4°F (New B. ‚ 2002). In aquaculture‚ the four highest producers of the genus Macrobrachium were China‚ Thailand‚ India and Bangladesh in 2007 (FAO‚ 2009). In 2007‚ the
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kind of role does hydrogen peroxide and a liver have in their chemical reaction? In the experiment‚ we saw they had a reaction‚ but completed further tests to determine whether they changed after the reaction. Hydrogen peroxide is chemically changed into water and the liver is broken down in the reaction. In the experiment‚ a fresh piece of chicken liver was put into a test tube filled with 3% hydrogen peroxide. We knew a reaction was taking place because the hydrogen peroxide started to foam and
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Factors Affecting the rate of Hydrogen Peroxide degradation using Catalase Introduction An enzyme is a globular protein which functions as a catalyst that speeds up the rate of a reaction without being consumed in the reaction. An enzyme-catalyzed reaction occurs when a substance called the substrate binds onto the active site of the enzyme. This joining allows for a reduction in the activation energy and the reduction in activation energy helps the reaction to occur at a quicker rate. Enzyme
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extract has a significant effect on the percentage of killed cockroaches. #22 Celery seed Extract as active ingredient in tanning lotions Christian John Immanuel S Boydon‚ Dennis C David‚ Gerard Paul T Dela Cruz ABSTRACT A tanning lotion with celery seed extract as active ingredient was concocted in order to find out if it could be an effective but less expensive substitute to commercial tanning lotions. Celery seeds were bought from AMSA Seed company and extract was obtained using soxhlet
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Study of the first element – Hydrogen. Answer the following questions:- 1. Give a reason why hydrogen can be placed in group 1[IA] and group 17[vIIA] of the periodic table. 2. What similarities does it show with group 1[IA] and group 17[VIIA]. With special reference to valency electrons and ion formaton and examples. 3. How does hydrogen occur in the free and combined state? 4. Which metals react with cold‚steam and boiling water to form their respected oxides and hydroxides ? Give examples and
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Billie Jean Celery I always found celery weird‚ so I never bother or even dare eating them. However‚ for this assignment I decided to try them and see how it tastes. I decided to choose celery first of all because it is a vegetable that I have never ate due to the fact that I always thought it was bitter because of its green look. Second‚ eating celery has never been in my plan and also because this is something we don’t really see and eat in my country (Cote D’Ivoire). Finally‚ celery is very rare
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