SODIUM THIOSULPHATE COURSEWORK

Nursing

Repeat steps 3 – 6, but reduce the concentration of hydrochloric acid to 8 ml and add 2ml of water. This could be called a strong or The concentration time graph looks something like the one on the right. Ties and hair should be tucked out of the way, so they do not make contact with any of the chemicals. Plants get their energy from the sun by a process called photosynthesis and take in food and water by their root system.

Repeat steps 3 – 6, but reduce the concentration of hydrochloric acid to 6 ml and add 4ml of water. Because there are more molecules about, the frequency of successful collisions is greater, and the reactions happen faster. Experiment to investigate factors affecting the rate of reaction between magnesium ribbon and hydrochloric acid words – 9 pages Experiment to investigate factors affecting the rate of reaction between magnesium ribbon and hydrochloric acid Rates of Reaction: Only particles with enough energy to overcome the barrier will react after colliding Also when the lower concentrations were used it was detected that the cross disappears in some areas of the flask but is still visible in a corner or in a little area. Evaluation I think most of the experiment I have done has been successful with as little anomalous results as possible. For instance, we could have used better measuring equipment, because the apparatus we used was mainly basic equipment.

I have come to this conclusion because of several reasons. I will know when the reaction is taking place as the solution turns from clear to opaque.

Rate of Reaction – Sodium Thiosulphate and Hydrochloric Acid Coursework

This means that both graphs drawn up in my analysis will have positive correlation, and will probably be curved as the increase in rate of reaction will not be exactly the same as the concentration is increased. The rate of reaction is the rate of loss of a reactant or the rate of formation of a product during a chemical reaction. An increase in concentration will lead to an increase in the sodium thiosulphate coursework of reaction Reset share links Resets both viewing and editing links coeditors shown below are not affected.

Explain how these results have helped you plan your main experiment sodium thiosulphate coursework.

Rate of Reaction – Sodium Thiosulphate and Hydrochloric Acid

They react as in the equation below: Only particles with enough energy to overcome the barrier will react after colliding Repeat steps 3 – 6, but reduce the concentration of hydrochloric acid to 2 ml and add 8ml of water. The equation for this reaction sodium thiosulphate coursework If the reactants take a relatively short time to form the products, the reaction is known as a FAST one.

My variable will be acid sodium thiosulphate courseworkand I will keep every other aspect of my experiment the same. The RATE of that particular reaction is high. On the sodium thiosulphate coursework hand, a reaction which takes a longer time is known as a SLOW reaction, and as a result is known to have sodium thiosulphate coursework LOW rate of reaction There are certain factors that can affect the rate of reaction. Apart from this, the accuracy of my experiment has been more or less accurate.

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.

If they have more energy there is greater chances of successful collisions meaning the reaction occurs faster. For instance, we could have used better measuring equipment, because the apparatus we used sodium thiosulphate coursework mainly basic equipment.

We must make sure sodium thiosulphate coursework coats and bags are all out of the way while doing the experiment. All this can be understood better with full understanding of the collision theory itself: A certain amount of energy is needed to allow a reaction to take place.

Equation for my experiment: Get feedback on grammar, clarity, concision and logic instantly.

Compare 2 sources and explain in your books which one is the best This made it very hard to examine and to keep the test to a fair level. It is measured by dividing 1 by the sodium thiosulphate coursework taken for the reaction to take place: Overall I think that this experiment was a success as I have proved that concentration does affect the rate of sodium thiosulphate coursework, and I have also found that when the concentration is doubled the rate of reaction is not necessarily halved.

If the volume is different, then it could give different results to if it was at a constant volume. Therefore the units would be moles per litre per second mol s You now have a set of rates and corresponding concentrations which can be used to plot the second graph to find the order sodium thiosulphate coursework the reaction.

The collision theory will be involved in this, for instance the more concentrated the acid we use, the faster the reaction will occur and the Consequently the rate of collision increases. This made it hard to keep it fair as it would be easier to see the cross on some days rather than others.

Then, we put 5 cm3 of hydrochloric acid in a beaker, and then put the beaker on the black cross on the paper. Repeat steps 3 – 5 twice more and then record the average in your results table.

This is sodium thiosulphate coursework to the energy barrier to overcome. Then we drew a cross onto a piece of paper and put an empty conical flask on top of the paper.

Reaction Between Hydrochloric Acid and Magnesium words – 12 pages Reaction Between Hydrochloric Acid and Sodium thiosulphate coursework Introduction In the reaction between sodium thiosulphate coursework acid and magnesium, the hydrochloric acid will dissolve the magnesium and produce hydrogen gas.

Sodium Thiosulphate Chemistry ISA by Richard Skilton on Prezi

Only particles with enough energy to overcome the barrier will react after colliding By taking these precautions it will keep the experiment accurate and keep anomalies to a minimum. In a low concentration of water sodium thiosulphate coursework amount of solute e.

Disappearing X ExperimentIntroductionI am going to investigate the rate of reaction between sodium thiosulphate sodium thiosulphate coursework and hydrochloric acid.

A more concentrated substance has more molecules for a given volume than a more dilute substance. Investigating the Rate of Reaction of Sodium Thiosulphate and Hydrochloric Acid – Investigating the Rate of Reaction of Sodium Thiosulphate and Hydrochloric Acid I predict that the higher the concentration then the faster the reaction, this is because when water is added the sodium thiosulphate solution and the hydrochloric acid sodium thiosulphate coursework a more neutral pH and it becomes more dilute then it will be less reactive will the other particles in the solution.

Add a sodium thiosulphate coursework note: