How does the concentration affect the rate of a reaction? 30/1/2012 By Alex Whenman Contents page 1. Introduction to my investigation 2. Background information on concentration 3. What experiment I will be conducting 4. Equipment I will be using 5. How I will be conducting the experiment 6. Heath and safety risk assessment 7. What I think will happen 8. How I will set up my experiment 9. Why I’m having my experiment set out like
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measure the heart rate and ventilation rate before‚ during and after moderate exercise. Introduction: I predict that during exercise the heart and respiratory rate (RR) will increase depending on the intensity of exercise and the resting rates will be restored soon after exercise has stopped. I believe that the changes are caused by the increased need for oxygen and energy in muscles as they have to contract faster during exercise. When the exercise is finished the heart and ventilation rates will gradually
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Investigating the rate of electrolysis. An investigation to find out what factors affect the rate of electrolysis of a solution containing copper (II) ions. Plan It is known that by passing a constant electric current through a copper sulphate solution the passage of ions through this solution results in copper atoms being dissolved into the solution from the anode‚ which has a positive charge while positive copper‚ ions (cations) are also being discharged at the cathode which has a negative charge
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What Affects the Rate of Evaporation? Aim * To find out if changes in temperature‚ draught and surface area of water open to air affects the rate of evaporation through the water. * To safely check if these variables change the rate of evaporation * To complete all the experiments in the short period given Prediction * I believe that a raise in temperature will speed up the rate of evaporation in the water * I believe that a larger surface area will speed up the rate of evaporation
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results a final conclusion can be drawn. The hypothesis was supported by graph 3 and 6 which both showed that an increase in concentration of the reacting species resulted in an increase in reaction rate. Both graphs have a positive gradient which clearly indicates that concentration increases the reaction rate. The hypothesis also proposed that as temperature increases the speed of the reaction would decrease‚ this is evidenced in graph 7 which shows a negative decrease in time as the temperature of the
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TRANSILVANIA UNIVERSITY FACULTY OF ECONOMIC SCIENCES BUSINESS ADMINISTRATION YEAR II ECONOMETRICS The analysis of the factors which influence the rate of unemployment Sacarea Alexandra Sabrina Table of contents 1.Objectives of project 2.Stages of analysis 2.1.Data collection 2.2.Estimation of parameters 3.Graphical representation 4.Statistical tests 4.1.Fisher Test 4.2.Student Test 5.Durbin-Wtason Test 6
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Factors that can affect profilers: 1. Media. There are a lot of movies and TV series that has the portrayal of Criminal Profiling as their main subject to entertain the viewers. It is interesting to note that all of these popular portrayals of profiling are somewhat inaccurate because they suggest that profiling is a magical skill somewhat analogous to a precognitive psychic ability thus‚ the audience perceives it to be the case. Media is the downfall of profiling as well as the success.
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The affect of caffeine on Daphnia Heart rate Aim: To see the effect of caffeine on the heart rate of the water flea Daphnia. Introduction: Caffeine is a stimulant which is derived from leaves‚ flowers and seeds of plants. The plant uses the caffeine as a way to repel insects as it is used as a natural pesticide by paralyzing and killing certain insects. It is used as a stimulant to human the central nervous system by increasing the stimulatory of the neurotransmitters‚ however high levels
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What Factors Affect the Labor Market? Adrienne Rudy ECON 210 Professor Kenneth Tirpack February 14‚ 2015 As a professional recruiter‚ I would prefer a candidate with a college degree. Even if the degree obtained does not exactly align with the position I am looking to fill‚ a college degree can give me a lot of information about an applicant. One of the most important thing that a college degree tells me is that the person is a hard worker. It takes drive‚ hard work‚ and dedication to obtain
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The purpose of the experiment conducted was to observe if a higher concentration or lower concentration gradient would affect the diffusion rate of the iodine moving through the starch concentration. This was shown to be an accurate experiment as with a higher concentration gradient the diffusion that did occur happened a lot faster and diffused more efficiently compared to no iodine solution and just water. This is due to the molecular collisions speeding up the experiment in the time period given
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