I did, however find some outliers in my results. Research Papers words 4. When the solution is made more concentrated, there are a greater number of molecules in the same space. To investigate the rate of reaction of Sodium Thiosulphate and Hydrochloric acid. Sodium Thiosulphate reacts with hydrochloric acid to form a yellow precipitate.
The independent variables in our experiment are the concentration of hydrochloric acid. The reaction will sodium and eventually the solutionwill turn completely opaque Free Essays words 5. This shows that as you increase the independent variable the concentration , the other variable the time taken for the experiment , went down. This shows that there is no real difference between the results. I decided that it would be best for me to use a bold marker pen to make the mark more visible under the conical flask. I did, however find some outliers in my results.
This could have happened because of calculation errors, human errors, recording errors or a fault with the equipment that hyxrochloric used. 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 sodium thiosulphate stayed the same.
The rate of reaction between sodium thiosulfate and hydrochloric acid. I am investigating the different factors which may speed up chemical reactions. Conclusion In my investigation, my data and my graphs proved that my hypothesis was correct.
The rate of reaction between sodium thiosulfate and hydrochloric acid Essay
(DOC) GCSE CHEMISTRY RATES OF REACTION COURSEWORK | Anjelina Qureshi –
I would do different trials on sulphuric acid and nitric acid. 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 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.
Hydrochloric acid is colourless, poisonous and highly acidic. I wrote down my results and then moved on to the next concentration of sodium thiosulphate. I predict that as the concentration of the Sodium Thiosulphate doubles, the rate of the reaction will double.
Research Papers words 4. How to cite this page Choose cite format: Science Experiments Coursework Rates Essays].
Aim My aim is to investigate how changing the concentration of reactants can change the rate of reaction between hydrochloric acid and sodium thiosulphate. The conical flask and all other equipment must be clean as any impurities may contaminate my experiment. Remember me on this computer. Keep the size of my measuring flask is the same size; this should hopefully make my experiment much fairer and accurate.
I have highlighted the 2M results on my tables because it seems as though there is a problem with that set. Skip to main content. This ensures that the solution is completely opaque when I stop the timer. Free Essays words 1. Also, it has a narrow top and so it is safer.
Click here to sign up. An input of heat energy is required to start some reactions. Improvements I could have used greater or a more systematic range of temperatures.
Sodium thiosulphate is a colourless, crystal like compound and is used for dyes and is also a salt. Hi, I am Sara from Studymoose Hydorchloric there, would you like to get such a paper? The independent variables in our experiment are the concentration of hydrochloric acid. I have used reliable resources to research this information and it all confirms my conclusion. 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.