It is also important to keep the temperature the same to obtain fair results, however we do not have to worry about this as the temperature will be kept at room temperature through out the experiment. If the volume is different, then it could give different results to if it was at a constant volume. Do you really want to delete this prezi? The four main variables that affect rate are: Sodium Thiosulphate and Hydrochloric Acid Reaction Investigation Essay – Sodium Thiosulphate and Hydrochloric Acid Reaction Investigation Aim To see the effects of concentration on the rate of a reaction between sodium thiosulphate and hydrochloric acid. Ties and hair should be tucked out of the way, so they do not make contact with any of the chemicals.

We did this by measuring out the acid in a beaker and pouring it into a measuring cylinder along with the water as well. Get inspired and start your paper now! In which a precipitate is formed and causes the solution to become opaque. The higher the concentration of hydrochloric acid, the faster the rate of reaction. Background information The collision theory briefly:

All plant storage organ products, i. I would also repeat the experiment a few more times to again increase its accuracy. I predict that as the concentration of the Sodium Thiosulphate doubles, the rate of the reaction sodium thiosulphate coursework double.

Briefly describe your Preliminary Experiment and include your results. They react as in the equation below: In my case the We had to add the Sodium Thiosulphate and the water at the same time for this to be a fair sodium thiosulphate coursework also.

Sodium Thiosulphate Chemistry ISA by Richard Skilton on Prezi

The four main variables that affect rate sodium thiosulphate coursework Collisions between reacting particles are therefore more likely to occur.


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A certain amount of energy is needed to allow a reaction to take place. The reaction that will be taking place will follow sodium thiosulphate coursework rate at which sulphur is formed in the reaction of sodium thiosulphate with dilute hydrochloric acid.

So, in this experiment we have chosen to keep hydrochloric acid at a constant concentration 5cm3.

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

I have come to this sodium thiosulphate coursework because of several reasons. PlanningWhat I going to investigate is how different factors affect the rate of the chemical reaction of Sodium Thiosulphate and Hydrochloric acid.

The stopwatch was stopped when the X marked on the piece of paper was no longer visible through the mixture. 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: Sodium thiosulphate coursework we drew a cross sodium thiosulphate coursework a piece of paper and put an empty conical flask on top of the paper.

Rate of Reaction Experiment – Sodium Thiosulphate and Hydrochloric Acid

However, there are still a few anomalous results which I will now point out. The write up of an experiment using Sodium Thiosulphate and hydrochloric acid words – 12 pages Skill Area P: Ethanol is sodium thiosulphate coursework example of an organic polar solvent which will dissolve lipids to a limited extent.

Get feedback on grammar, clarity, concision and logic instantly. The graph has negative curve. This collision causes certain bonds to break and new sodium thiosulphate coursework to be formed. All chemical reactions involve reactants which when mixed may cause a chemical reaction which will make products.


It is also important we keep the sodium thiosulphate coursework and size of the cross the same this will help keep the results fair for the experiment Another thing we must do is to make sure that the beaker is completely clean and free of any water or any other substance before we attempt to start the next experiment.

The Horse in Art Essay. The earliest know plants that occurred were the ferns, and they appeared about million years ago Plant, The RATE of that particular reaction is high. Equation for my experiment: By this time the mixture was completely cloudy. Because there are more molecules about, the frequency of successful collisions is greater, sodium thiosulphate coursework the reactions happen faster.

To show how fast they have reacted Sodium thiosulphate coursework will time how long it takes for the solution to go cloudy. This made it very hard to examine and to keep the test to a fair level. Firstly, my results give conclusive evidence that as the amount of Sodium Thiosulphate decreases and sodium thiosulphate coursework 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.

Which is the best source? More collisions mean a quicker rate of reaction. Then it travels up the stem and to the leaves