I believe that when the most concentrated solution is used the reaction would be coursework coursework fastest. Also, it has a narrow top and so it is safer. Investigating the rates of reaction of Sodium thiosulphate and hydrochloric acid – Investigating the rates of reaction of Sodium thiosulphate and hydrochloric gcse Using my preliminary experiments I decided on using the following apparatus: Each of these steps will have a rate which is due to how many molecules are colliding. My data has proven to be reliable and I am therefore happy to use it to make a justifiable conclusion that concentration does have an effect on rate of reaction. Keep the size of my measuring flask is the same size; this should hopefully make my experiment much fairer and accurate. There are a few outliers in my results.
The rate of reaction is the speed of a reaction. According to the kinetic sodium all matter is made up of tiny, invisible particles that move all the time. Instead of using the cross method I would use a light intensity machine that could measure the change in colour over a period of time and stop and start timing when it had reach a certain value. The independent variables in our experiment are the concentration of hydrochloric acid. Hydrochloric acid is colourless, poisonous and highly acidic. 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.
We must produce a piece of coursework investigating the rates of reaction, and the effect different changes have on them. This again would give a more quantitative results and increase the accuracy and reliability. My conclusion is valid because it includes evidence that my data is accurate and I have summed up my experiment in it. Extension To extend chemistrysodium chemistrysodium I could have investigated different factors.
If you need this or any sorium sample, we can send it to you via email. The room temperature could have affected my reaction and this could be the reason that I have some outliers.
When coursework temperature is increased around or on these particles, the faster they move. My data was precise because most of the points on my graphs are close to thoosulphate line and are all close by each other. In this investigation I will be varying the concentration of Sodium Thiosulphate thesis writing practice worksheets and not the Hydrochloric acid concentration.
Free Essays words 3. This increases the likelihood of reactants colliding properly and so increases the rate of the chemical reaction.
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This shows how the power, and order of the reaction, can be found by drawing a graph of logRate against log[concentration] and the gradient of the line will give the order of the reaction. According to the kinetic sodium all matter is made up of tiny, invisible particles that move all the time. The rate of reaction is the speed of a reaction. In a more concentrated solution there are more particles so collisions occur more frequently.
Therefore the slowest step in this reaction is the breakdown of 1 Sodium Thiosulphate molecules as the reaction is 1st order.
This is the reaction I will be considering: The conical flask and all other equipment must be clean as any impurities may contaminate my experiment. My Error bar graph shows a negative correlation. Papers] Free Thiosulphate courssework 2. Sorry, but copying text is not allowed on this site. Hi, I am Sara from Studymoose Hi there, would you like to get such a paper?
I believe that when the most concentrated solution is used the reaction would be coursework coursework fastest. This could have happened because of calculation errors, human errors, recording errors or a fault with the equipment that we used. Papers] Gcse Essays words 3. I could test this by asking one of my peers to follow the instructions and then asking for their feedback. How about make it original? If I was using solids, I could investigate surface area and for gases I could investigate pressure In concentration I looked at ocncentration 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.
Sodium Thiosulphate and Hydrochloric Acid Coursework Essay Example for Free – Sample words
I will be timing and watching: Nobody in my group was asthmatic soduum if they were, I would have carried out the experiment near a window or in a fume cupboard. Similarly the cross used will need to be the same as a thicker cross would mean it will disappear at a different concentration of sulphur and the results will not be fair.
Heavier particles move more slowly than light ones at a given temperature. The dependent variable was the rate of reaction.