Rate of Reaction - Sodium Thiosulphate and Hydrochloric Acid :: Chemistry Coursework Investigation

locate of Reaction - atomic number 11 Thiosulphate and Hydrochloric Acid AimInvestigation, to find out how the station of answer between SodiumThiosulphate and Hydrochloric acid is usurped by ever-changing theconcentration.IntroductionI moldiness produce a piece of coursework probe the tread ofchemical reply, and the effect different changes have on them. The rate ofreaction is the rate of loss of a reactant or the rate of developmentof a product during a chemical reaction. It is measured by dividing 1by the time taken for the reaction to take place. There is fivefactors which affect the rate of a reaction, according to thecollision theory of reacting particles temperature, concentration (ofsolution), shove (in gases), surface area (of solid reactants), andcatalysts. I have chosen to investigate the effect of concentration onthe rate reaction. This is because it is the most practical toinvestigate. transaction with temperatures is a difficult task especiallywhen we have to keep regular high temperatures. Secondly the rate compare and the constant k changes when the temperature of thereaction changes. We have no gases and solids involved therefore it iseasy to deal with solutions. also the use of a catalystcomplicates things, and if used incorrectly could alter the takings ofthe experiment.The theory behind this experiment is that Increasing theconcentration can increase the rate of the reaction by increasing therate of molecular collisions. GRAPHI entrust place the reaction mixture on a reputation with a black cross-drawnon it. When the cross is completely obscured, the reaction will havefinished. The time taken for this to happen is the measure of the rateof reaction. We must do this several times, and change theconcentration of Sodium Thiosulphate.The rate of reaction is a measure of the change, which happens duringa reaction in a whizz unit of time. The things that affect the rateof reaction are as follows rear area of the reactants Concentration of the reactants The temperature at which the reaction is carried out Use of a catalystReaction equation is mentioned above but rate equation could only bedecided by doing experiments. So the following routine can be usedto carry out the experiment.PlanEquipment 2 Measuring cylinders Beaker Stopwatch Paper with black cross on it Sodium Thiosulphate (different concentrations) Hydrochloric acid (same concentration each time) Water (different concentrations) PipettePredictionI predict that the greater the concentration of Sodium Thiosulphate