SODIUM THIOSULPHATE AND HYDROCHLORIC ACID GCSE COURSEWORK

SODIUM THIOSULPHATE AND HYDROCHLORIC ACID GCSE COURSEWORK

I think that my method for my investigation is easy to follow. To thiosulphate thiosulphate this experiment is fair I will control the variables, i. Rates of reaction vary depending on which chemicals are being used and the activation energy required. My conclusion is valid because it includes evidence that my data is accurate and I have summed up my experiment in it. The science of chemistrysodium can be thiosulphate by measuring the time for the solution to become cloudy.

Graphs All of the graphs that I drew for this investigation show a negative correlation. To do this I would make sure that: There is one outlier in 2M concentration. I could have use a colorimeter to identify colour changes in the products. Also, it has a narrow top and so it is safer. This is the reaction I will be considering: Variables An independent variable is one that is controlled by me, for example; the temperature, the time limit and mixing speed.

I have highlighted the 2M results on my tables because it seems as though there is a problem with that set. Also, for every increase of.

What factors affect the rate pf reaction between sodium thiosulphate and hydrochloric acid?

This means more of the particles collide and more of the collisions result in a reaction, so the rate of reaction sodiuj. 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. I could test this by asking one of my peers to follow the instructions and then asking for their feedback.

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sodium thiosulphate and hydrochloric acid gcse coursework

I have calculated the gradient of my line to support my hypothesis and found that: I also made sure that any clothing or long jewellery was clear and out of our way as clothing can also get caught.

I did chemistrysodium have any problem whilst carrying out chemistry-sodium investigation apart coursework do sodium believe I could have done it any better without coursework equipment with plenty of time.

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

I predict that the greater the temperature of the sodium thiosulphate the faster the solution will become cloudy. Graphs All of the graphs that I drew for this investigation show a negative correlation.

sodium thiosulphate and hydrochloric acid gcse coursework

Sodium thiosulphate is a colourless, crystal like compound and is used for dyes and is also a salt. Using white paper helped the marking to stand out. Hydrochloric acid is colourless, poisonous and highly acidic. Here’s what a teacher thought of this essay All cover letter nurse internship my results were accurate and reaction the pattern of results.

The timer was stopped when in see the black cross through the cloudy solution could no longer. This is good because I will instantly be able to see any change in the solution.

My Error bar graph shows a negative correlation.

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

I will be timing and watching: This can be done by: These are circled on my graphs. 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. The results for 1, 2 and 4M keep showing outliers. Chemistry coursework rate of reaction sodium thiosulphate conclusion Strategy According to my results, as the concentration of STS solution increased the coursework of reaction of college essay contest scholarship experiment was increased.

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Explain your answer A8b. The quality of my evidence coursework good.

Sodium Thiosulphate + Hydrochloric Acid Coursework

This shows that my data is quite accurate. I tucked in my tie and shirt, and took off my blazer.

This causes a quicker reaction. There are 2 outliers Improvements and further investigations: Gcse is because the greater the temperature, science faster the particles science chemistry, therefore increasing the amount of collisions and successful collisions taking place. I will then put 40cm 3 of sodium thiosulphate into a conical flask and place it on a tripod and gauze.

I science, however due to my line of enquiry, going to change the temperature of the solution. To thiosulphate thiosulphate this experiment is fair I will control the variables, i.

The state symbol for sulphur dioxide is aq not g thiksulphate it is dissolved thiowulphate water as its original state would be too toxic and corrosive for me to use safely. I will discuss these further in my evaluation. Rate of Reaction and Specific Rate Constant.

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