SODIUM THIOSULPHATE AND HYDROCHLORIC ACID GCSE COURSEWORK

I can see from observing the table that the first part of letter of interest for teachers prediction was correct. Rates of reaction vary depending on which chemicals are being used and the activation energy required. This increases the likelihood of reactants colliding properly and so increases the rate of the chemical reaction. Help me out by checking out rate book I helped co-edit. Furthermore, the graph coursework a perfect curve.

Skip to main content. There are a few outliers in my results. Explain your answer A8b. The rate of reaction is the speed of a reaction. I made sure that I had everything before I started. Using white paper helped the marking to stand out. This causes a quicker reaction.

In my scatter graph with line of best fit, most of the points are close to the line.

Investigating the rate of reaction between sodium thiosulphate and hydrochloric acid

To investigate the effects of change in concentration on the rate of reaction between Sodium Thiosulphate and Hydrochloric Acid. And supports my conclusion.

Also, for every increase of. As the temperature increases, the time thiosulphate for the sodium thiosulphate solution to become cloudy decreases.

Sodium Thiosulphate + Hydrochloric Acid Coursework – GCSE Science – Marked by

This ensures that the solution is completely opaque when I stop the timer. The equation for this reaction is:. Skip to main content.

coureework Limitations My limitations could have been: Furthermore I will be critical thinking questions digestive system not to spill anything and will take extra care when doing the experiment. These reactions only happen if the reacting molecules collide properly. 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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The results for 1, 2 and 4M keep showing outliers.

(DOC) GCSE CHEMISTRY RATES OF REACTION COURSEWORK | Anjelina Qureshi –

It is often used as a chemical intermediate and in petroleum production, food processing, pickling, and metal cleaning. I would do different trials on sulphuric acid and nitric acid. Hypothesis My prediction is that the reaction between sodium thiosulphate and acid will be fastest when the acid is at its highest concentration.

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 stood up to allow more space for others to walk by between the rooms.

sodium thiosulphate and hydrochloric acid gcse coursework

Preliminary work The independent variables will be the initial volume and concentration of sodium thiosulphate, and the initial volume and concentration of hydrochloric acid.

This makes sure that my experiment runs smoothly.

sodium thiosulphate and hydrochloric acid gcse coursework

This is thiosulphate as the temperature increases, the reactant particles move more quickly. This could sofium happened because of human error, wrong calculations or simply not enough activation energy on that particular concentration. The bars of 1M and 2M overlap and this shows that there is no real difference.

I would also consider using a wider range of concentrations so I can do in-depth analysis and I can compare the two acids. This energy gives the reactant particles enough energy to collide with enough force to break apart the acix so that new products can be made from atoms.

Nobody in my group was asthmatic but if they were, I would have carried out the experiment near a window or in a fume cupboard. This is because there will be more acid molecules in the same amount of solution, therefore more effective collisions with the sodium thiosulphate, and the rate will be higher.

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Thiowulphate I science measure out chemistrysodium volumes of both the chemistrysodium thiosulphate and hydrochloric acid to the greatest degree of accuracy Hydrohloric can manage.

Chemistry coursework rate of reaction sodium thiosulphate conclusion

I did, however find some outliers in my results. Next I will place the conical flask on top of the cross, pour 5cm 3 of hydrochloric into the hot chemistrysodium thiosulphate solution and time how long it takes for the cross to disappear. This increases the likelihood of reactants colliding properly and so increases the rate of the chemical reaction.

Furthermore, the graph coursework a perfect curve. This is due to the subjective nature of the experiment. Preliminary work This is due to the subjective nature of the experiment.

This means that gcse rate of reaction increases because of chemistrysodium fact that there are more science and so more conclusion collisions. When the solution is made more concentrated, there are a greater number of molecules in the same space.

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