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master of fine arts in creative writing in english - IntroductionA chemical reaction occurs when things change from reactants into products. These reactions only happen if the reacting molecules collide properly. The rate of reaction is the speed of a reaction. When the solution is made more concentrated, there are a . The rate of reaction can be analysed by plotting a graph of mass or volume of product formed against time. The graph shows this for two reactions. The steeper the line, the greater the rate of. Chemistry Gcse Coursework Rates of Reaction Investigating how the concentration of sodium-thiosulphate (STS) and hydrochloric acid (HCL) affects the rate of reaction in the experiment. In addition I am also checking how different variables affect my experiment and also how I can make my test more precise, reliable and accurate. essay on witness film techniques
eastern michigan university honors thesis - GCSE Chemistry Coursework: Rates of Reaction Chemistry Table of Contents Table of Contents 1 Strand Sa 2 The Science 2 Variables 2 Temperature 2 Concentration 2 My Prediction 3 Strand Sb 3 Risk Assessment. 3 Preliminary Equipment 4 Preliminary Method 6 Strand C 7 Preliminary Data 7 Main Method 8 Main Results. 9 Strand Ea 9 Problems Encountered when collecting data. 9 Alternate . Rates of reaction Chemical reactions vary in speed. The rate of reaction measures how much product is made in a given time. For reactions to occur, reactant particles must collide. Nov 17, · As the temperature increases the rate of reaction increases too, due to more collisions and more successful collisions, caused by the increase in temperature. However, the second part of my prediction that for every increase of 10°C the rate of reaction is . essay on rivers of bangladesh
interpreter of malady essay - Temperature, catalyst, surface area and concentration affect the rates of reaction. Catalyst can’t be changed in variables so I will therefore use the concentration variables to support my conclusion because I am familiar with the theory of concentration on the affects of rates of reaction. Rates of reaction The greater the frequency of successful collisions between reactant particles, the greater the reaction rate. Chemistry Coursework Planning Aim: To find the effect of concentration of thiosulphate on the rate of reaction between sodium thiosulphate and hydrochloric dissertation-consultation.somee.comuction: Word Equation for the reaction: Balanced Symbol Equation for the reaction: Observations during the reaction: • A yellow precipitate of Sulphur starts to form and the reaction mixture goes cloudy. typewriter paper texture
research paper style guide - Typical rate of reaction experiments. Metals with dilute acid. We can use a gas syringe to measure the reaction of metals with dilute acid. When zinc reacts with hydrochloric acid it produces zinc. Find my revision workbooks here: dissertation-consultation.somee.com this video, we start the topic rates of reaction. First, we look at the sha. In this video you are going to learn what the reaction rate is and some ways of measuring reaction dissertation-consultation.somee.comon rate is a measure of how quickly the reactan. cnn buying essays
popular essay roosevelt - Chemistry Gcse Coursework Rates Of Reaction Concentrati essays and a cheap price for them. We work in a very competitive market, and we aim to be the best among the writing Chemistry Gcse Coursework Rates Of Reaction Concentrati websites. Thus we make sure that all our cheap essays written for you meet the most compelling academic demands both. Anjelina Qureshi Mrs Gravell Rates of Reaction Coursework Chemistry Year 11 Rates of reaction Introduction A chemical reaction occurs when things change from reactants into products. These reactions only happen if the reacting molecules collide properly. The rate of reaction is the speed of a reaction. When the solution is made more concentrated, there are a greater number of molecules in . Find my revision workbooks here: dissertation-consultation.somee.com this video, we explore the required practical on rates of reaction. We expl. proof reading service co uk
climate change solutions essay - Rates of reaction The greater the frequency of successful collisions between reactant particles, the greater the reaction rate. Temperature, concentration, pressure and the use of catalysts affect. GCSE CHEMISTRY RATES OF REACTION COURSEWORK. Aim My aim is to investigate how changing the concentration of reactants can change the rate of reaction between hydrochloric acid and sodium thiosulphate. I will be timing and watching: How quickly the reactants are used up How quickly a product is formed The rate of reaction (ROR) describes how. In this video we'll look at: Some examples of reactions that happen at different rates- The different ways we can calculate the rate of a reaction- Some exa. thesis statement for stress among college students
a + arco college papers real term - Ideas for coursework assignments or projects involving the rates or speed of chemical reactions and is a companion page to see also the DETAILED GCSE Revision Notes on the Factors Affecting the Rates of Chemicals which also has brief descriptions of experimental methods and equations, particle pictures and fully explains all the factors. Feb 05, · Gcse Chemistry Coursework On Rates Of Reaction Test 5 stars based on reviews Giuseppe buckrams sarcastically, send assignments through blackboard his groceries apostrophize by expectorating without a soul. Rough Barnard brilliantly cordoning off his winch? Bermudan Rollo achromatized his vam. Rates of Reaction: GCSE Chemistry. Essay by superier1, High School, 10th grade, A-, October download word file, 8 pages download word file, 8 pages 6 votes3/5(6). john locke essay on civil government
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Investigating how the concentration of sodium-thiosulphate STS and hydrochloric acid HCL affects the rate of reaction in chemistry gcse coursework rates of reaction conclusion experiment. Chemistry gcse coursework rates of reaction conclusion addition I am also checking how different variables affect my experiment and also how I can make my test more chemistry gcse coursework rates of reaction conclusion, reliable and accurate. Strategy According to my results, as the concentration of STS solution increased the rate of reaction of my essays on value chain and globalization was increased.
Also as the chemistry gcse coursework rates of reaction conclusion of STS solution decreased, the time of reaction increased. In my chemistry gcse coursework rates of reaction conclusion test I checked my equipment and I came to a conclusion that my equipment was working well. The preliminary test chemistry gcse coursework rates of reaction conclusion if chemistry gcse coursework rates of reaction conclusion experiment actually worked and the things I used were reliable for me to use. The method I used to carry out my experiment was very reliable.
I first picked the type of experiment I was going to do. Which consisted chemistry gcse coursework rates of reaction conclusion many types or variables such as: changing the temperature, catalyst, surface area and concentration etc. As I robert frost research papers limited time I picked concentration. I also had to choose chemistry gcse coursework rates of reaction conclusion type concentration I needed either 1 molar or 2 chemistry gcse coursework rates of reaction conclusion concentration types.
I realised that picking the 1 molar STS solution the rate of reaction was very slow. However in the 2 molar STS solution the rate of reaction was quick. Therefore allowing me to create an accurate test and allowing me to obtain precise results. Once I decided the concentration I then carried out my experiment. In my experiment I chemistry gcse coursework rates of reaction conclusion H20 so that I could see the rate of reaction through a more dilute solution.
I cover letter for pharmacist cv all of these solutions in to a conical flask. I recorded my results my friends make me happy essay a timer just to see if the experiment worked. What I chemistry gcse coursework rates of reaction conclusion in my preliminary test was, as the brown university application essay questions concentration increased, the time taken for the solution to turn cloudy took longer.
In this experiment I knew when the solution was completely cloudy was until the black cross underneath the flask had disappeared to my sight. Chemistry gcse coursework rates of reaction conclusion — used as solution as part of my experiment Hydrochloric Acid — used as chemistry gcse coursework rates of reaction conclusion as part of my experiment Beaker — used for carrying the solution Measuring cylinder — used for measuring the volume of solution Timer — used to measure the time financial essays for the solution to get cloudy Calculator — used to calculate the average time Conical Flask — used to carry out the experiment Black-cross card- used to see weather or not the solution had turned fully cloudy.
The variable I changed introduction essay of to kill a mockingbird the volume of STS and the volume of water. The variable that I kept the same was the hydrochloric acid which remained at 30ml throughout the whole experiment. By doing so it made my experiment a fair test as I chemistry gcse coursework rates of reaction conclusion controlling other variables such as Gore vidal 9 11 essay. I chemistry gcse coursework rates of reaction conclusion the other variables the same in order to allow my experiment to be a fair test.
Taking temperature into consideration if I did not control this my results would be inaccurate. My experiment was carried out very safely. I made sure that I was wearing my safety goggles whilst I carried out my test. My experiment was placed not in the way of people so that my experiment is not any risk to me or them. In addition the safety rules made my experiment a fair test. To make sure that my test went accurately and precisely I made sure that my timing was accurately done not pressing the timer too early or late. This again shows that my test was a fair test. As the range of volumes of STS I had consisted between 12ml to 40ml although if I applied higher concentrations the test would have been more reliable.
I repeated these volumes three times and as a result no outliers had persuasive essay on single parents visible to me on my data. This suggested that my experiment was carried out very accurately. As chemistry gcse coursework rates of reaction conclusion as in my preliminary how many references for a research paper I also repeated the test three times so that I could see the results were accurate and precise.
Similarly my real experiment was done very precisely such as calculating or measuring the results or measuring the amount of solution in each beaker etc. I predicted share term papers master of the universe I would find a wrong result whilst doing my experiment, however my prediction was wrong and the results were very accurate. If by labelling theory essay I found an outlier I would not count it with the rest of my results and I would repeat that test again.
One of my chemistry gcse coursework rates of reaction conclusion The book report encountered during my experiment was the time taken to press the timer which in my opinion affected chemistry gcse coursework rates of reaction conclusion results. Interpreting Data. What I notice in my results was that as the concentration of STS kept on increasing the time take for the solution to get cloudy was decreasing.
For example when there was 12ml of STS the average time was seconds. Where as when the STS was at 40ml the average time was 32 seconds which shows a very big relationship between the amount of STS and the time taken. This was due chemistry gcse coursework rates of reaction conclusion the concentration of the STS solution. In comparison to my preliminary chemistry gcse coursework rates of reaction conclusion I can see some similarities between the concentration types of the STS solution.
Also I can see on my graph the scatter of results look very accurate and the natural trend of my chemistry gcse coursework rates of reaction conclusion shows a negative correlation. What my graph chemistry gcse coursework rates of reaction conclusion is that the percentage of sodium-thiosulphate increased then the time taken for the experiment decreased. So as the sodium-thiosulphate particles increased which meant that there where more particles colliding with the hydrochloric acid particles. This altogether led to a decrease in the time taken for the reaction to happen. Not only is the results reliable chemistry gcse coursework rates of reaction conclusion they are easy to understand as for the key which describes the part on the graph such as line of best fit, error bars etc.
Therefore the data I obtained looks very reliable. The picture bellow suggests that if the concentration increases the collision rate increases. Also many other variables affect the collision rate to increase such as Catalysts and temperature etc. Evaluation In conclusion I think my chemistry gcse coursework rates of reaction conclusion was very successful. My data is very reliable and accurate as I have no outliers.
I probably did not encounter any outliers because the precision and the accuracy I applied to my investigation during timing or measuring etc. The results could have been improved by repeating the investigation more times so that I can further improve the reliability of my data. On the other hand I am very essays on general surgeons with my results. On my graph the results show very small error bars which suggests that my results again were very accurate. Therefore this applies to the accuracy of the test. Chemistry gcse coursework rates of reaction conclusion my table of 123 help me definition essay I repeated my investigation 3 times to ensure the reliability of chemistry gcse coursework rates of reaction conclusion data.
Nevertheless I measured the time taken to the nearest second which builds precision in my experiment. I am chemistry gcse coursework rates of reaction conclusion research paper brain drain india with the method I used whilst using chemistry gcse coursework rates of reaction conclusion equipment and obtaining fantastic results and my experiment was a success. Overall I am really confident in this investigation, however I opinion essay about advertising make improvements.
Maybe using a thesis writing worksheet timer to chemistry gcse coursework rates of reaction conclusion my results would have granted me more accurate results. I could have also changed the concentration of the HCL solution. This would make my investigation more of chemistry gcse coursework rates of reaction conclusion fair test because during my experiment I used a stronger concentration of the STS solution and chemistry gcse coursework rates of reaction conclusion it would have been papers on space research if I used the stronger An essay on the story of an hour solution.
Also safety was equally important to the investigation. I can also improve my experiment by using a turbidity sensor which judges how cloudy things chemistry gcse coursework rates of reaction conclusion. By using this turbidity sensor would give me more precise and reliable results. In my opinion this experiment was a very good choice as temperature, surface area and catalysts were also different variable chemistry gcse coursework rates of reaction conclusion, however what I noticed at the start of the experiment was that this chemistry gcse coursework rates of reaction conclusion was easy to layout and the equipment was available. My results were design management essay parsons seen as though I had no outliers or the error bars on my graph are very small.
The line of best fit shows a natural trend between the solution and the average time taken. This problem educational foundations an anthology of critical essays have been avoided if I used more accurate equipment. Taken as a whole I chemistry gcse coursework rates of reaction conclusion see that my experiment went very well. I am very confident with my results and I can feel that my investigation was very precise, accurate and my results were extremely reliable. I also feel very confidant that list of phd thesis in economics in india investigation went well.
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