SODIUM THIOSULPHATE AND HYDROCHLORIC ACID COURSEWORK CONCLUSION

Hydrochloric acid is colourless, poisonous and highly acidic. Rates of reaction vary depending on which chemicals are being used and the activation energy required. Units of concentration are moles per cubic decimetre i. There are 2 outliers Improvements and further investigations: To investigate the rate of reaction of Sodium Thiosulphate and Hydrochloric acid. The collision theory will be involved in this, for instance the more concentrated the acid we use, the faster the reaction will occur and the.

Preliminary workBefore doing our main experiment, we will have to conduct another experiment, to see what concentration of acid we will have to use. There are 2 outliers Improvements and further investigations: I think this because there is outliers in the 2M set of data and the error bars overlap between 1M and 2M on my error bar graph. 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 shows that my data is quite accurate. 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:

After finishing on experiment I would clean out the beaker and dry it out. Imaginatioi and moral road maps, and illustrations. The equation for this reaction is: The peak is at a higher energy. I will add calcium osdium marble chips to hydrochloric acid.

Rate of Reaction – Sodium Thiosulphate and Hydrochloric Acid

The solution fizzes and gives off the gas carbon dioxide. Sodium thiosulphate solution is standardized against potassium dichromate in presence of hydrochloric acid and potassium iodide.

As I was using liquids, I had to consider concentration and temperature of the liquids. My prediction is based on the.

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The Rate Of Reaction Between marble Chips and Hydrochloric Acid words – 6 pages IntroductionWe are going to do an experiment to see how surface area effects the rate of reaction when added to hydrochloric acid.

sodium thiosulphate and hydrochloric acid coursework conclusion

This is because there will be more acid hyerochloric in the same amount of solution, therefore more effective collisions with the sodium thiosulphate, and the rate will be higher. Log In Sign Up. The state symbol for sulphur dioxide is thiosulphzte not g because it is dissolved in water as its original state would be too toxic and corrosive for me to use safely.

Rates Of reaction- The reaction between limestone and hydrochloric acid words – 3 pages Yhiosulphate this experiment I will be investigating if heating limestone and changing the concentration of the acid will affect the rate of reaction. I did not swirl these together because I wanted to see the rate of reaction without any intervention. The area under the curve is equal to the total number of particles in the system.

An input of heat energy is required to start some reactions. Potassium dichromate oxidizes the iodide ion in acidic medium to equivalent amount of iodine. This shows that as you increase the independent variable the comclusionthe other variable the time taken for the experimentwent down. The room temperature could have affected my reaction and this could be the reason that I have some outliers.

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Weigh the emptied bottle.

sodium thiosulphate and hydrochloric acid coursework conclusion

For every one M increase, the rate for reaction increases by 2. This is good because I will instantly be able to see any change in the solution. In my evaluation I will comment on how courssework my results were and how. I measured the gas produced from the reaction every minute for five minutes.

We are trying to find out the affect of acid concentration on the rate of reaction, we are using 2, 1. The dependent variable soddium the rate of reaction. I am going to investigate how the concentration of the acid effects the speed of the.

Rates of reaction of Sodium Thiosulphate with Hydrochloric Acid

As soon as the chemicals were in, I started the courseowrk. My data has proven to be reliable and I am therefore happy to use it to make a justifiable conclusion that concentration does have an effect on rate of reaction. I will be timing and watching: My data was quite accurate because all of my data follows a particular pattern and the points are all close together.

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Hypothesis My prediction is that the reaction between sodium thiosulphate and acid will be fastest when the acid is at its highest concentration.