Firstly, my results give conclusive evidence that as the amount of Sodium Thiosulphate decreases and the amount of water in the solution there are less atoms to collide and therefore less successful collisions causing chemical change so the reaction rate is slower. The reaction that will be taking place will follow the rate at which sulphur is formed in the reaction of sodium thiosulphate with dilute hydrochloric acid. By taking these precautions it will keep the experiment accurate and keep anomalies to a minimum. To do this it is a lot easier if there are two people doing the experiment, so one person can put the two substances in the HCL, and one person can start the stopwatch. Background information The collision theory briefly:
If they have more energy there is greater chances of successful collisions meaning the reaction occurs faster. Investigating the rate of reaction between Sodium Thiosulphate and Hydrochloric Acid words – 7 pages Investigating the rate of reaction between Sodium Thiosulphate and Hydrochloric AcidDiagramAim: Repeat steps 3 – 5 twice more and then record the average in your results table. A school lab does not have enough sophisticated equipment which will allow us to measure the concentration of a reactant after a given period of time when the reaction is still continuing. I predict that as concentration is doubled the amount of time taken for the reaction is halved. I predict that as the concentration of the Sodium Thiosulphate doubles, the rate of the reaction will double.
I am going to investigate the effect of changing the concentration sodium thiosulphate coursework Sodium Thiosulphate on the rate of the reaction between Hydrochloric Acid and Sodium Thiosulphate. Consequently the rate of collision increases. Copy code to clipboard. This turns the solution cloudy. History of the City of Hamilton.
In a more concentrated solution, there are more atoms to collide so the reaction time is quicker. Rates of Reaction – The concentration of hydrochloric acid and the rate of reaction with sodium theosulphate – Rates of Reaction – The concentration sodium thiosulphate coursework hydrochloric acid and the rate of reaction with sodium theosulphate Introduction During a chemical reaction, particles collide with each sodium thiosulphate coursework.
The amount of time taken for the reaction sodium thiosulphate coursework occur is known as This could be called a strong or Also using a stopwatch instead of a wristwatch would also make the results more reliable. We timed how long it took for the solution to turn cloudy so that the cross could no longer be seen. The reaction that takes place is as follows: We are trying to find out the affect of acid concentration on the rate of reaction, we are using 2, 1.
Reaction Rates Chemical Reactions Essays]. More collisions mean sodium thiosulphate coursework quicker rate of reaction. Only particles with enough energy to overcome the barrier will react after colliding We then waited for the black cross to be completely obscured by the mixture.
Method Firstly, we drew a black cross on a white piece of paper. This is due to the sodium thiosulphate coursework barrier to overcome.
Sodium Thiosulphate + Hydrochloric Acid Coursework
Plants get their energy from the sun by sodium thiosulphate coursework process called photosynthesis and take in food and water by their root system. The experiment was done over a period of 5 days; I sodium thiosulphate coursework the same cross I used for the first day however the light intensity was different on each day.
Only a small percent result in a reaction. I will know when the reaction is taking place as the solution turns from clear to opaque.
For instance, we could have used better measuring equipment, because the apparatus we used was mainly basic equipment. As an inert and stable liquid, sodium thiosulphate coursework was used to alter concentration of Sodium Thiosulphate without changing the end amount of solution.
The graph has negative curve. For a reaction to sodium thiosulphate coursework particles have to collide with each other. To do this, I shall react The results were recorded in a table and the equipment was cleaned thoroughly ready for the next experiment.
Rate of Reaction Experiment – Sodium Thiosulphate and Hydrochloric Acid
If the volume is different, then it could give different results to if it was at a constant sodium thiosulphate coursework. The rate graph has three curves which differentiates the three orders the following three graphs show the three curves.
An essay book review of My Antonia, by Willa Cather. Send this link to let others join your presentation: We then emptied out the contents of the beaker, cleaned it out and dried it out. To do this we added water to the acid and did the experiment again 4 times, decreasing the concentration of the acid by 5cm3 each time.
This is not half the time; sodium thiosulphate coursework had an error margin of 1. Repeat steps 3 – 6, but reduce the concentration of hydrochloric acid to 8 ml and add 2ml of water. Get feedback on grammar, clarity, concision and logic instantly.
Both of them have value of 2. The four main variables that affect rate are: Background information The collision theory briefly: Constrain to simple back and forward steps. Similar Essays Investigation Of Sodium Thiosulphate And Hydrochloric Acid words – 3 pages The purpose of this investigation is to record the amount of time taken for a reaction to occur when sodium thiosulphate is mixed with hydrochloric acid.
In our experiment, we are reacting it with sodium thiosulphate. In which a precipitate is formed and causes the solution to become opaque. Firstly, my results give conclusive evidence that as the amount of Sodium Thiosulphate decreases and the amount of water in the solution sodium thiosulphate coursework are less atoms to collide and therefore less successful sodium thiosulphate coursework causing chemical change so sodium thiosulphate coursework reaction rate is slower.
sodium thiosulphate coursework This collision causes certain bonds to break and new ones to be formed. Add a personal note: Repeat steps sodium thiosulphate coursework – 6, but reduce the concentration of hydrochloric acid to 6 ml and add 4ml of water. Experiment write up, including method and discussion on testing food substances for sodium thiosulphate coursework presence of lipids fats words – 9 pages Testing Food Substances for the Presence of LipidsAim: Apparatus1 small measuring cylinder1 large measuring cylinder1 small beaker1 large beakerHydrochloric AcidSodium ThiosulphateCross drawn on paperConical flaskWaterStopclockMethodFirst of all we measured out 25cm3 acid and 25cm3 sodium thiosulphate.
Ties and hair should be tucked out of the way, so they do not make contact with any of the chemicals. A firewall is blocking access to Prezi content.
Sodium Thiosulphate + Hydrochloric Acid Coursework – GCSE Science – Marked by
The size of this activation energy is different for different reactions. To investigate the effects of change in concentration on the rate sodium thiosulphate coursework reaction between Sodium Thiosulphate and Hydrochloric Acid.
There are certain factors that can affect the rate of reaction.