Rate of Reaction :: Papers

Rate of Reaction Aim To watch and appreciation record of the effects of a change in concentration on the treasure of answer. Word equation Hydrochloric Acid + sodium thiosulphate Sulphur dioxide + sodium Chloride + water 2HCl + Na2S203 2Na + SO2 + H2O Plan In this experiment I lead be testing the rate of reaction of Hydrochloric acid and Sodium Thiosulphate. The rate of reaction tells us how quickly a reaction happens, so I result increase the concentration of the hydrochloric acid distributively time I do the experiment, adding of distilled water to 2 molars of the acid therefore providing us with the concentrations 2, 1.5,1,0.5 and ultimately 0 to react with the acid. I leave do a pretest introductory to see if the amounts of acid and Sodium Thiosulphate work and to see if there wont be any anomalous results. Equipment Diagram of equipment 2x beaker 4x conical flask 2x measuring cylinders displace X board Stopwatch Predi ction I predict that each time we increase the concentration of the Hydrochloric acid the amount of time it will take to react will decrease because the stronger the acidity the quicker it will react with the Sodium Thiosulphate as the more concentrated the acid firmness of purpose the more successful collisions occur. The rate of reaction is how quickly the reaction happens and a reaction happens because of collisions between the reactants. IMAGE Concentration this is the factor Im going to study I will use the concentrations 0mol, 0.5mol, 1mol, 1.5mol and 2mol. Temperature This has big effects on the rate of reaction because the hotter the reactants are the faster they react, this is because the molecules of the reactants move around more and faster so collide more often and quicker, as they collide they react, therefore as according to the collision theory the reaction is sped up. Catalysts catalysts lower the activation sinew of a reaction so wi th