Investigate how the change in concentration affects the rate of :: GCSE Chemistry Coursework Investigation

Investigate how the change in preoccupation affects the rate ofreaction between sodium thiosulphate and hydrochloric acid conceptionI am trying to find out how the change in concentration affects therate of reaction between sodium thiosulphate and hydrochloric acid.I predict that the high the concentration of sodium of thiosulphate,the quicker the rate of reaction will be between the two substances.The scientific reason for my prediction is due to the smashtheory.The collision theory is, that in order for chemicals to react theymust come into contact with each other (collide). However, not allcollisions result in chemical reactions as sometimes the particlesjust bounce off each other. The particles must have sufficient energywhen they collide to react. If you increase the number of collisions,you increase the rate of reaction. Therefore, a higher concentrationmeans a greater number of collisions.DiagramPreliminary TestingThis is the word equation for the reaction between the two s ubstancessodium + Hydrochloric Sodium + Sulphur + Sulphur + WaterThiosulphate Acid Chloride DioxideNa2S2O3 + HCl NaCl + SO2 + S + H2O( aq ) + ( aq ) (aq ) + ( g ) + ( s ) + ( l )Before I start the probe, by having front tests I canfind a volume of each dissolver that I can persona where I am able tocomplete the investigation in a reasonable period of time. When I amundergoing my experiment I will be making one variable. By changingthe concentration of sodium thiosulphate, this is done by adding peeingto the solution. As I change the amount of water I put into thesolution the concentration of it is changing. The more water that isput into the solution the weaker the concentration will become.To get my preliminary results I set up the experiment as above in thediagram section, and you use different amounts of the solutions.Use a burette to measure the amounts of the solutions needed, and putthem into separate beakers. Using a funnel at the top of the buretteto pout the solution i nto. After firstly using a measuring cylinder tomeasure the solution.Use a stopwatch to time how long it takes for the cross underneath the cone-shaped flask to disappear, as the solutions are mixed together. Asthe reaction turns the two colourless liquids, into a milky colourafterwards.Repeat the procedure with different amounts of the solutions, workout the best amounts that I could use for experiment.These are the results that I received------------------------------------------------------------------------Amount of H2O Amount of sodium Amount of hydrochloric Time Taken