Chemistry coursework investigating rates of reaction

Chemistry coursework investigating rates of reaction

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Home chemistry coursework investigating rates of reaction

Chemistry - Rates of Reaction Investigation

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Lani - this experiment was done 3 years ago. Evaluation All of my results were accurate and fitted the pattern of results.

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Rates of Reactions

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There are many factors variables which determine how fast or slow the investigaging can take place rate of reaction. Each experiment run will need 50 cm 3.

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The rate of reaction of magnesium with hydrochloric acid

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How does temperature affect the rate of a chemical reaction?

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Investigating Reaction Rates

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The particles will collide but because there is less water the rate of reaction will be faster and quicker.

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Chemistry Coursework: Investigating the effect of Concentration on the Rate of Reaction

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Wear eye protection throughout.

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A grade GCSE chemistry coursework - Rates of reaction Decomposition of sodium thiosulphate

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Evaluation All of my results were accurate and fitted the pattern of results.

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Catalysts speed up chemical reactions. Halogenoalkanes are classified as either primary, secondary or tertiary.

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Firstly I will draw a small dark cross on a piece of paper and place it on a bench mat.

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If any spills onto your hands it should be washed off immediately and reported to the teacher.

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There are many factors variables which determine how fast or slow the reaction can take place rate of reaction.

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One student can add the magnesium ribbon to the acid and stopper the flask, while the other starts the stopclock. Because the rate of chemical reactions relates directly to concentration of reactants, the rate law is used to find the rate constant, and calculated with specified temperatures.

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This is an investigation about the decomposition of sodium thiosulphate. At 50ml I could see that the time to react was extremely fast.

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On investigaitng other hand, a reaction which takes a longer time is known as a SLOW reaction, and as a result is known to have a LOW rate of reaction Include 'health and safety' points.

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It went up by 8.

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Larger particles collide less often because there are fewer of them.

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I will measure the amount of time for the solution to become completely cloudy by drawing a cross on a piece of paper and place it under the beaker. The simplest solution here, is to make sure all the chemicals have been standing in the laboratory prior to the lesson.

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I recognised that the reaction involving sodium thiosulphate and hydrochloric acid took about 6 seconds when I used the ration There is a simple way to investgating this.

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Main investigation Prediction I predict that the greater the temperature of the sodium thiosulphate the faster the solution will become cloudy. If you are looking at changing the reaction temperature, its not easy to accurately vary chemistry coursework investigating rates of reaction control the temperature of the reactants without a thermostated water bath rqtes hold the reaction flask in.

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A Future in Chemistry. You can continue in a broader context by introducing some background theory and descriptions of the factors or VARIABLES which may have an effect on the rate of the reaction you are studying include briefly factors which might not apply.

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I am going to investigate what effect the concentration of the sodium thiosulphate has on the reaction rate. Place the conical flask on the top of a black cross.

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Each time you cut a new slice, you get an extra surface onto which you can spread butter and jam. It shows the reproducibility of a set of measured quantity. What is the use of methyl orange in this experiment The group of people who have more.

From the table above I can see that, as the temperature increases, the time taken for the cross to disappear decreases. Through experimentation, factors are discovered that influence the reaction rates of chemical reactions include the concentration….

I did not have any problem whilst carrying out my investigation apart and do not believe I could have done it any better without specialist equipment with plenty of time. PLAN A chemical reaction takes place over a specific period of time i. The particles will collide but because there is less water the rate of reaction will be faster and quicker. In other words give some detailed ideas on further work that would provide additional relevant evidence.

Thank you so much!!!!

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