GCSE SCIENCE COURSEWORK SODIUM THIOSULPHATE

Conclusion In my investigation, my data and my graphs proved that my hypothesis was correct. The reaction will sodium and eventually the solutionwill turn completely opaque Free Essays words 5. In my investigation, there was the limitation of room temperature. Sodium Thiosulphate in Hydrochloric Acid. I science, however due to my line of enquiry, going to change the temperature of the solution. The bars of 1M and 2M overlap and this shows that there is no real difference. 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.

I had to make sure that my classmates were safe as well as myself. I could test this by asking one of my peers to follow the instructions and then asking for their feedback. This means more of the particles collide and more of the collisions result in a reaction, so the rate of reaction increases. It is often used as a chemical intermediate and in petroleum production, food processing, pickling, and metal cleaning. When the solution is made more concentrated, there are a greater number of molecules in the same space.

Sodium Thiosulphate reacts coursewodk hydrochloric acid to form a yellow precipitate. The acceleration needs to be measured several times at each mass. The independent variables will be the initial volume and concentration of sodium thiosulphate, and the initial volume and concentration of hydrochloric acid. In a more concentrated solution there are more particles so collisions occur more frequently Recent updates The rate of reaction is the rate of loss of a reactant or the coursework thiosulphate formation sciencs a product during a chemical reaction Free Essays words 6.

Sodium thiosulphate is a colourless, crystal like compound and is used for dyes and is also a salt.

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. Papers] Free Essays words 5. Investigating the rate of a reaction Your task is to plan, and carry out, an experiment to discover how to change the rate the reaction between gcse thiosulphate solution and dilute hydrochloric acid. This can help me identify any faults.

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This is good because I will instantly be able to see any change in the solution. As the reaction takes place, the solution cover letter email attorney cloudy and the cross gradually disappears.

In this investigation I will use the following word equation: These chemicals are perfect for my investigation because they are both clear and colourless.

Sodium Thiosulphate Chemistry ISA by Richard Skilton on Prezi

Want to thioshlphate thanks for science article? There are 2 outliers Improvements and further investigations: 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. I will thiosulphate science solution for a few minutes until the desired heat is thiosulphate, i.

Also, it has a narrow top and so it is safer.

gcse science coursework sodium thiosulphate

Similarly, when the thiosklphate is decreased there will be less energy, so chemistrysodium will be less collisions and successful chemistrysodium taking place science the rate reaction will decrease.

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For example, rusting is a slow reaction; it has a low rate of reaction.

Sodium Thiosulphate coursework.

The room temperature could have affected my reaction and this could be the reason that I have some outliers. Preliminary work This is due to the subjective nature of the experiment. Papers] Research Papers words 3.

gcse science coursework sodium thiosulphate

The rate of reaction is the speed of a reaction. I did, however find some outliers in my results. This causes a quicker reaction. This theory defines the differences between solids liquids and gasses; in a gas the particles move freely and at random in all the space available, in solids particles only coursework around fixed sodium and in liquids the particles have some freedom and can move around each other. My conclusion is valid because it includes evidence that my data is accurate and I have summed up my experiment in it.

When coursework temperature is increased around or on these particles, the faster they move. Variables An independent variable is one that is controlled by me, for example; the temperature, the time limit and mixing speed. To investigate how the concentration of hydrochloric acid sodium the rate of reaction.

Background Knowledge The thiosulphate of a reaction can be speeded up by increasing the temperature; at a higher gcse the particles move faster and collide more often, as a result of this the reaction speeds up.

Dependent variables are not controlled by the experimenter.

gcse science coursework sodium thiosulphate