Gcse chemistry coursework rates reaction sodium thiosulphate

Sodium thiosulphate and hydrochloric acid experiment report

This makes sure that my experiment runs smoothly. This increases the likelihood of reactants colliding properly and so increases the rate of the chemical reaction. Graphs All of the graphs that I drew for this investigation show a negative correlation. This shows that my data is quite accurate. Rates of reaction vary depending on which chemicals are being used and the activation energy required. 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. Edexcel questions courtesy of Pearson Education Ltd. Conclusion In my investigation, my data and my graphs proved that my hypothesis was correct. For example, rusting is a slow reaction; it has a low rate of reaction. My conclusion is justifiable because I have backed it up with points from my data and I have proved all the points that I made. Only a small percent result in a reaction. I also made sure that the measuring cylinder was on a level surface so that I could clearly see how much liquid I was putting in to it. This is due to the energy barrier to overcome. I did have some outliers in my results; however I think that the experiment went fairly well overall. In addition to this, more particles have activation energy.

In my scatter graph with line of best fit, most of the points are close to the line. This energy gives the reactant particles enough energy to collide with enough force to break apart the bonds so that new products can be made from atoms.

I did, however find some outliers in my results. Using white paper helped the marking to stand out.

Rate of reaction experiment

I had to make sure that my classmates were safe as well as myself. I did not swirl these together because I wanted to see the rate of reaction without any intervention. Pay you to write my assignment Sodium thiosulfate - Wikipedia will make sure i handle the sodium thiosulphate solution and hydrochloric acid with care.. I think that my method for my investigation is easy to follow. The RATE of that particular reaction is high. A certain amount of energy is needed to allow a reaction to take place. As the temperature increases, the time taken for the sodium thiosulphate solution to become cloudy decreases. If they have more energy there is greater chances of successful collisions meaning the reaction occurs faster. This shows that as you increase the independent variable the concentration , the other variable the time taken for the experiment , went down. I did have some outliers in my results; however I think that the experiment went fairly well overall.

I tied my hair back, tucked in my tie and pushed all stools and bags under the desk where there is no risk of anyone tripping. Only particles with enough energy to overcome the barrier will react after colliding The rate of reaction is the rate of loss of a reactant or the rate of formation of a product during a chemical reaction.

rate of reaction concentration experiment

There are a few mild outliers.

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(DOC) GCSE CHEMISTRY RATES OF REACTION COURSEWORK