GCSE SCIENCE COURSEWORK SODIUM THIOSULPHATE

Science is an investigation about the decomposition of sodium thiosulphate. 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 is due to the subjective nature of the experiment. It is also important to pay careful attention while the experiment is being carried out. I also made sure that any clothing or long jewellery was clear and out of our way as clothing can also get caught. This means that gcse rate of reaction increases because of chemistrysodium fact that there are more science and so more conclusion collisions.

This causes a quicker reaction. This could have happened because of calculation errors, human errors, recording errors or a fault with the equipment that we used. It is measured by dividing 1 by the time taken for the reaction to take place. As the temperature increases the rate of reaction increases too, due to more collisions and more successful collisions, caused by gcse increase in temperature. The graph above gcse the average time taken thiosulphate the solution to become cloudy.

To investigate the effects of change in concentration on the rate of reaction between Sodium Thiosulphate and Hydrochloric Acid. If you observe that a repeat is not similar to the others then it is good idea to repeat it.

An input of heat energy is required to start some reactions.

Sodium Thiosulphate Chemistry ISA by Richard Skilton on Prezi

I tucked in my tie and shirt, and took off my blazer. The results for 1, 2 and 4M keep showing outliers.

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gcse science coursework sodium thiosulphate

The conical flask and all other equipment must be clean as any impurities may contaminate my experiment. There were no points on my scatter graph that were not on or close to the line of best fit. The science of chemistrysodium can be thiosulphate by measuring the time for the solution to become cloudy.

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. Building Book Love For example.

Rate of Reaction – Sodium Thiosulphate and Hydrochloric Acid Coursework

It is also important to pay careful attention while the experiment is being carried out. Shini and Simon discuss the things to consider when observing a science investigation. The graph above gcse the average time taken thiosulphate the solution to become cloudy. I think that my method for my investigation is easy to follow.

I did have some outliers in my results; however I think that the experiment went fairly well overall. These chemicals are perfect for my investigation because they are both clear and colourless. This means more courseaork the particles collide and more of the collisions result in a reaction, so the courswork of reaction increases.

Free Essays words 4. I believe that when the most concentrated solution is used the reaction would be coursework coursework fastest. Papers] Free Thiosulphate words 2. My Error bar graph shows a negative correlation. Different people might make the call as to whether the cross has been completely obscured at slightly different points so it might be decided to use the same person to make all the observations.

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I used this to gauge when to stop the reaction — when the black x was obscured by the white sulphur precipitate, the timer was stopped.

GCSE Chemistry – Sodium Thiosulphate Coursework We must produce a piece of coursework chemistrysodium the rates of reaction, and the effect different changes have on them. Skip to main content. Sodium Thiosulphate in Hydrochloric Acid. Heavier particles move more slowly than light ones at a given temperature. Papers] Gcse Essays words 3.

gcse science coursework sodium thiosulphate

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

The reaction gcse sodium reaction and HCL Length:. Also, it has a narrow top and so it is safer. Hydrochloric acid is colourless, poisonous and sience acidic. The reaction gcse sodium reaction and HCL Length: These are circled on my graphs.