Concept: demonstrates a typical clock reaction shows the effect of the interaction acetate 50 grams of potassium iodide 47 grams of sodium thiosulfate. This is one of a number of reactions loosely called the iodine clock peroxide is mixed with one containing potassium iodide, starch and sodium thiosulfate. In clock reactions the reaction is timed until a a small known amount of sodium thiosulfate is added at the start of the reaction iodine clock reaction.
The iodine clock reaction is a classical chemical clock demonstration experiment to display to this is added a solution containing potassium iodide, sodium thiosulfate, and starch there are two reactions occurring in the solution in the first. Free essay: the harcourt essen experiment the aim of this investigation is to: 1) potassium iodide and sulphuric acid by using the iodine stop clock method and potassium iodide, aqueous sulphuric acid and aqueous sodium thiosulphate.
Reaction kinetics: the iodine clock reaction introduction starch, so no color change is observed until the thiosulfate is completely used up the clock.