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 have calculated the gradient of my line to support my hypothesis and found that: Take care with glass wear, such as pipettes as they are fragile and may break easily. Another limitation of the procedure at the start of the timing and I had to add the chemicals together and start the stopwatch. 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.
The bars of 1M and 2M overlap and this shows that there is no real difference. I will investigate how the rate of this reaction is affected when the experiment is carried out at different temperatures. I then drew up graphs for my results Data Concentration Test Test 2 Test 3 M 1 s s s 1 2 3 4 5 Table 1: I will be timing and watching: Dependent variables are not controlled by the experimenter.
I have used reliable resources to research this information and it all confirms my conclusion. The rate of reaction is the rate of loss of a reactant or the coursework thiosulphate formation of a product during a chemical reaction Free Essays words 6.
(DOC) GCSE CHEMISTRY RATES OF REACTION COURSEWORK | Anjelina Qureshi –
These two acids react well with the right materials. This good because it shows that for every increase in concentration is a decrease in rate of reaction.
The two equations can then put together to give an overall rate equation:. To control this the same volumes will be used and the same conical flask will be used and therefore the depth will be the same.
The bars for 3M, 4m and 5M do not overlap. Papers] Free Thiosulphate words 2. Click here to sign up. Get feedback on grammar, thiosulphate, gcse and logic instantly. Free Essays words 4. The dependent variable was the rate of reaction.
Sodium Thiosulphate and Hydrochloric Acid Coursework Essay Example for Free – Sample words
I stood up to allow more space for others to walk by between the rooms. Open Document Click the button above chemistrysodium view the complete essay, speech, term paper, or research paper. Also from my table of results for changing the concentration of HCl, where all the rates must be the same for difference concentrations, there is a anomaly with the 2.
Leave your email and we will send you an example after 24 hours I believe that when the most concentrated solution is used the reaction would be coursework coursework fastest. I am investigating the different factors which may speed up chemical reactions. Hi, I am Sara from Studymoose Hi there, would you like to get such a paper?
Reactions that happen quickly have a high rate of reaction. Another method that could be used is to measure the products formed. Similarly the cross used will need to be the same as a thicker cross would mean it will disappear at a different concentration of sulphur and the results will not be fair.
Then add the corresponding amounts of distilled water and label with the correct concentration. Use of rate of reaction in industry The chemical industry makes medicine and many other substances such as; Limestone – this is used for building Sulphuric acid concentrationn used to make other substances Ammonia – used to make fertilisers.
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My data was precise because most of the points on my graphs are close to the line and are all close by each other. The rate of reaction is the rate of loss of a reactant or the rate dodium formation of a product during a cover letter for customer service advisor position reaction.
Oops, we could not find the requested page. My conclusion is valid because it includes evidence that my data is accurate and I have summed up my experiment in it.
The method I will be using is by seeing how long it takes for a black cross underneath the conical flask to disappear which will be the point in all the reactions where the concentration of the sulphur precipitate is equal and so will the rate can be fairly calculated.
This increases the likelihood of reactants colliding acir and so increases the rate of the chemical reaction.
Another limitation of the procedure at the start of the timing and I had to add the chemicals together and start the stopwatch. As soon as the chemicals were in, I started the timer. Dependent variables are not controlled by the experimenter. ad
Sodium Thiosulphate and Hydrochloric Acid Coursework Essay
I coursework on linkedin going to investigate the effect of chemistrysodium the concentration of Sodium Thiosulphate on the rate of the reaction between Hydrochloric Acid and Sodium Thiosulphate. To conclude the results show that the rate of the reaction between Sodium Thiosulphate and Coursewoek Acid is directly proportional to the concentration of Sodium Thiosulphate.
It can also be found in the stomach. When coursework temperature is increased around or on these particles, the faster they move.