There are 2 outliers Improvements and further investigations: The thiosulphate equation for this is: In my scatter graph with line of best fit, most of the points are close to the line. I would also consider using a wider range of concentrations so I can do in-depth analysis and I can compare the two acids. The rate of reaction is the rate of loss of a reactant or the rate of formation of a product during a cover letter for customer service advisor position reaction. To investigate the rate of reaction of Sodium Thiosulphate and Hydrochloric acid.
Heavier particles move more slowly than light ones at a given temperature. As soon as the chemicals were in, I started the timer. Also, it has a narrow top and so it is safer. It is measured by dividing 1 by the time taken for the reaction to take place. Burning and explosions are very fast reactions: This shows that there is no real difference between the results. Papers] Research Papers words 3.
The reaction between sodium thiosulphate and HCL.
I could have use a colorimeter to identify colour changes in the products. Papers] Gcse Essays words 3. Limitations My limitations could have been: Papers] Free Essays words 5.
Activation energy Activation energy is the energy required to break the bonds of the reactants, so that new bonds can form to make the products. This is very important because loose hair can not only get dipped ratd chemicals but can also obscure vision.
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There are 2 outliers Improvements and further investigations: Dependent variables are not controlled by the experimenter. Sodium Thiosulphate in Hydrochloric Acid.
Aim My aim is to investigate how changing the concentration of reactants can change the rate of reaction between hydrochloric acid and sodium thiosulphate.
The reaction will sodium and eventually the solutionwill turn completely opaque Free Essays words 5.
I did have some outliers in my results; however I think that the experiment went fairly well overall. This is the reaction I will be considering: This is good because I will instantly be able to see any change in the solution.
Sodium thiosulphate is a colourless, crystal like compound and is used for dyes and is also a salt.
Background Research Chemical reactions are to do with changing the materials that form the base of your experiment. For example, when my concentration was 1M the average reaction time was seconds, and then when the concentration was 5M the average reaction time was seconds.
This is supportive of my conclusion. This increases the likelihood of reactants colliding properly and so increases the rate of the chemical reaction. This makes sure that my experiment runs smoothly. If I do a further investigation, I will try to minimise the number of mistakes that I make. The results for 1, 2 and 4M keep showing outliers.
My data was quite accurate because all of my data follows a particular pattern and the points are all close together. Rates of reaction vary depending on which chemicals are tihosulphate used and the activation energy required. It is measured by dividing 1 by the time taken for the reaction to take place. Nobody in my group was asthmatic but if they were, I would have carried out the experiment near a window or ane a fume cupboard.
When coursework temperature is increased around or on these particles, the faster they move.
There is five factors which affect the rate of a reaction, according to the collision theory of reacting particles: Evaluation – My gcse are reliable because I made it a fair test. Ot ensures that the solution is completely opaque when I stop the timer.
Papers] Free Essays words 1.
(DOC) GCSE CHEMISTRY RATES OF REACTION COURSEWORK | Anjelina Qureshi –
Sodium Thiosulphate reacts with hydrochloric acid to form a yellow precipitate. Papers] Research Papers words 3. Rate of Reaction and Specific Rate Constant. This could have happened because of human error, wrong calculations or simply not enough activation energy on that particular concentration.