The reaction that occurs produces sulphur dioxide, water and sodium chloride Free Essays words 4. When the solution is made more concentrated, there are a greater number of molecules in the same space. The higher the temperature of the sodium thiosulphate the faster the Essay – The higher the temperature coursework the sodium thiosulphate the faster creative writing online courses australia reaction of the two liquids. I stood up to allow more space for others to walk by between the rooms. Evaluation My standard deviation sheet is attached at the back of this document marked with an asterisk.
The room temperature could have affected my reaction and this could be the reason that I have some outliers. I will be timing and watching: Free Essays words 4. There are 2 outliers Improvements and further investigations: I could test this by asking one of my peers to follow the instructions and then asking for their feedback. I wrote down my results and then moved on to the next concentration of sodium thiosulphate.
According to the kinetic sodium all matter is made up of tiny, invisible particles that move all the time. I predict that as the Sodium Coursework sodium increases the rate of reaction will also increase Research Papers words 3.
If I was using solids, I could investigate surface area and for gases I could investigate pressure In concentration I looked at five different concentration of HCl The volume of HCl stayed the same; also the volume of sodium thiosulphate stayed the same, the concentration of off thiosulphate stayed the same.
This fits in chemistr my hypothesis and my data. 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. I also made sure that the measuring sodiuj was on a level surface so that I could clearly see how much liquid I was putting in to it.
I could have use a colorimeter to identify colour changes in the products.
Enter the email address you signed courswork with and we’ll email you a reset link. This is because when there are more molecules in the solution, there are more molecules to collide so this will speed up the reaction, and therefore it is more likely they will collide with each other.
I had to make sure that my classmates were safe as well as myself. Extension To extend chemistrysodium chemistrysodium I could have investigated different factors. This is the reaction I will be considering: Papers] Gcse Essays words 3.
Burning and explosions are very fast reactions: Rates of reaction vary depending on which chemicals are being used and the activation energy required. Science Experiments Coursework Rates Essays]. To investigate the rate of reaction of Sodium Thiosulphate and Hydrochloric acid.
My data was precise because most of the points on my graphs are close to the line and are all close by each other. Get feedback on grammar, thiosulphate, gcse and logic instantly. Reactions that happen quickly have a high rate of reaction.
As I was using liquids, I had to consider concentration and temperature of the liquids. I wrote down my results and then moved on to the next concentration of sodium thiosulphate.
The size of the coirsework bars is quite small so I think I can say that my data is quite accurate except for the 2M result which is quite a long error bar.
(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. Reactions that occur slowly have a low rate of reaction. Graphs All of the graphs that I drew for this investigation show a negative correlation.
The independent variables in our experiment are the concentration of hydrochloric acid. This increases the likelihood of reactants colliding properly and so increases the rate of the chemical reaction. Skip to main content. Also, it has a narrow top and so it is safer. I think that my method for my chemidtry is easy to follow.
I would do different trials on sulphuric acid and nitric acid. 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 reactikn and in liquids the particles have some freedom and can move around each other Free Essays words 3.
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These reactions only happen if the reacting molecules collide properly. I have calculated the gradient of my line to support my hypothesis and found that: The results for 1, 2 and 4M keep showing outliers.
This is very important because loose hair can not only get dipped into chemicals but can also obscure vision.