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To investigate the change in rate of reaction between DILUTE HYDROCHLORIC ACID and SODIUM THIOSULPHATE as the concentration varies.
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YUSUF AZIZ 11.03 1/11/2004 CHEMISTRY COURSEWORK- INVESTIGATING RATE OF REACTIONS DRAFT AIM To investigate the change in rate of reaction between DILUTE HYDROCHLORIC ACID and SODIUM THIOSULPHATE as the concentration varies. PLAN A chemical reaction takes place over a specific period of time i.e. which is the time for the reactants to be formed into the products. If the reactants take a relatively short time to form the products, the reaction is known as a FAST one. The RATE of that particular reaction is high. On the other hand, a reaction which takes a longer time is known as a SLOW reaction, and as a result is known to have a LOW rate of reaction. There are several factors which alter can alter the speed/rate of a reaction. These are: -Temperature -Addition of a Catalyst -Size of Particles of a Solid Reactant -Presence of Light -Pressure -Concentration of Reactants in Solution I shall now look at HOW each of the above factors...
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