In order for me to carry out my experiments I would need to change the concentration of Sodium Thiosulphate in the reaction between Sodium Thiosulphate and Hydrochloric Acid. I would change the concentration of Sodium Thiosulphate by decreasing the volume of Sodium Thiosulphate and increasing the volume of water in ten different experiments. Below is a table of how I would do this. In order for me to get an accurate result, I am going to carry out these experiments three times.
The amount of one particular quantity, or concentration of the acid. The type of acid that was used may either slow down or speed up the reaction.
Also, another factor maybe that the time it take until I begin to start the stopwatch. To control the problem of affecting results I would have to swirl the mixture for e.
However, this would have to be done in every type of concentration and experiment. Draw a cross on a piece of paper and place a beaker on top of the paper. This is because once the cross disappears I know the reaction has completed as the compounds have now become one solution.
Thirdly, pour the measured amount of Sodium Phiosulphate into the beaker and then add the Hydrochloric acid.
Once this is added start the timer. Finally, once the cross has completely disappeared stop the clock and make a not of the time it took for the mixture to become one.
This procedure was produced with different concentrations. Before doing our experiment we saw a trail run on the computer known as: I learnt how different quantities and temperature can affect the speed of collision with in the particles.
From the experiment we had a set of results these were: I looked at other groups results to see to see if their results corresponded to mine: Other Factors that may have affected our results: The following may have affected our experiment in one way.
This may have been the cause for any anomalous results. The amount of hydrochloric acid measured incorrect, the amount of Sodium Phiosulphate measured incorrectly, size of the cross, any movement of the beaker, time taken until we began starting the stop clock.Collision theory • particles must COLLIDE before a reaction can take place • not all collisions lead to a reaction • reactants must possess a minimum amount of energy - ACTIVATION ENERGY + • particles must approach each other in a certain relative way - STERIC EFFECT.
Science presenter Jon Chase briefly outlines collision theory and then describes four ways to increase the rate of a reaction.
The effect of concentration is demonstrated using an iodine clock.
25/05/ Online thesis writing. For each factor I've presented several particle diagrams to help you follow the text explaining how the particle collision theory accounts for your observations of reaction rate varying with reactant concentration (some chemistry coursework rate of . For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.
That is, the momentum lost by object 1 is equal to the momentum gained by object 2.
Rates of Reaction. What is Collision Theory?. Collision theory says that a chemical reaction can only occur between particles when they collide (hit each other). Particles may be atoms, ions or molecules.. What is Activation Energy?. There is a minimum amount of energy that particles need in order to react with each other.
If the colliding particles have less than this minimum energy then. Stream Collision Course [Clean] by Jay-Z/ Linkin Park and tens of millions of other songs on all your devices with Amazon Music Unlimited. Exclusive discount for /5().