Experiment 24 - A Rate Law and Activation Energy Observe • To conduct an experiment in order to discover and calculate the expression known as the rate law for a particular reaction. • To conduct an experiment in order to determine the role each reactant plays within the reaction and the overall activation energy that is needed for a chemical reaction to occur all while utilizing an analytical tool. Procedure 1. Determination of Reaction Rates • Obtain boiled‚ deionized water‚ pipets or burets
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Biology 101 Exercise 2 Write Up A local chicken farmer heard a lot about the bird flu so he freely decided to apply monthly physicals for his chickens. An observation made is that chickens have a body temperature of 104 degrees Fahrenheit. That worries the farmer so he decides to conduct an experiment to try to figure it out. The question is “Do the chickens have a fever?” According to the information the cells are composed of hundreds types of enzymes and each one has a specific role in
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better coverage of white hair and a good shine. They are mixed with developers and do leave a slight re-growth. They last from 12-24 washes. 3. Semi permenant- These colour and condition the hair and gradually fade away. They are not mixed with hydrogen peroxide and last 6-8 washes. The pigments that are in tints are tiny therefore they fit right into the cuticle openings of the hair which is why they are permenant. The pigments in a quasi colour are bigger than the pigments in a tint therefore they
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Write an essay on the role of fungi in wood and litter decay. [40] Fungi‚ together with bacteria‚ are the principal decomposers in the biosphere. They break down organic materials and return the substances locked in those molecules to circulation in the ecosystem. Fungi can break down cellulose and lignin‚ an insoluble organic compound that is one of the major constituents of wood. By breaking down such substances‚ fungi release carbon‚ nitrogen‚ and phosphorus from the bodies of living
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Mark Scheme (Results) Summer 2012 International GCSE Chemistry (4CH0) Paper 1C Science Double Award (4SC0) Paper 1C Edexcel Level 1/Level 2 Certificate Chemistry (KCH0) Paper 1C Science (Double Award) (KSC0) Paper 1C Edexcel and BTEC Qualifications Edexcel and BTEC qualifications come from Pearson‚ the world’s leading learning company. We provide a wide range of qualifications including academic‚ vocational‚ occupational and specific programmes for employers. For further information‚
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Apparatus: Test tubes Measuring cylinders Wooden splinter Test tube rack Thermometer Glass rod Materials: Sodium peroxide Silicon (IV) oxide Universal indicator solution Magnesium oxide Phosphorus pentoxide Litmus paper Safety measurements: Safety spectacle **Warning: Phosphorus (V) oxide is corrosive and irritates eyes‚ skin and lungs. Sodium peroxide is also corrosive and a powerful oxidant. Procedure: Part A: Appearance: Examine your oxide samples‚ and in Table 1‚ note
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IB Biology Sheran Gu Meghan Lena Nov. 15th Influence of pH on Enzyme Activities How does the pH of solution influence the speed of enzyme activities? Enzymes are protein catalysts and chemical that speed up chemical reaction without being involved in the reaction. They are involved in the human digestive system to help people digest food more efficient. Food are substrates to be break down and absorb through the digestive system in the body. Substrate is a molecule that bond with the active site
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[1] They are small‚ membrane bounded organelles that have at least fifty different enzymes for several metabolic reactions. [2] Their appearance is like lysosomes; however‚ their main function is oxidation reactions especially oxidation of hydrogen peroxide and producing oxygen and water. There are diseases related and caused by this organelle that can be classified in three groups. [2] First group is a disorder duo to overall dysfunction of peroxisomes‚ like zellweger syndrome‚ second group duo
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information as to how temperature effects the amount of oxygen produced in an enzyme- catalase experiment. In the experiment we used liver extract as a catalase and created a chemical reaction within a reaction chamber between the catalase and hydrogen peroxide as well as three different controlled temperatures. In the procedure below there will be a step by step process as to how the experiment was created. As a result we found that the higher the temperature in the water bath the more oxygen will
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reaction 0.5M 134 seconds 1.0M 79 seconds 1.5M 59 seconds In this part‚ we have concluded that as concentration increases‚ the reaction rate also increases. Part (D) “The effect of cupric sulfate solution enhanced the rate of decomposition of hydrogen peroxide.” Chemical equilibrium is the state of constant composition attained when opposing reaction rates become equal. There is an essential relationship between reaction rates and chemical equilibrium‚ one that we can describe quantitatively
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