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CHEMISTRY COURSEWORK (II) THERMOMETRIC TITRATION by Andrew McLorn Planning Normally we use an indicator when doing titration experiments, in this experiment we will not be using an indicator. Instead we will be monitoring the temperature of the solution. When an alkali is mixed with an acid heat is given out, this is called an exothermic reaction. The temperature goes up until the acid is neutralised and then no more heat is given out because the reaction is over. Adding more alkali causes the temperature to decrease. Apparatus .retort stand and clamp .burette .pipette .small beaker containing HCl .small beaker containing NaOH .funnel .polystyrene cup thermometer Method 1)collect apparatus 2)pipette 25cm3 of acid 3)put the acid in to the polystyrene cup 4)fill burette with NaOH 5)put thermometer in polystyrene cup and note temperature 6)add 5cm3 of NaOH, stir the solution and note temperature 7)keep adding NaOH at 5cm3 intervals, stir and note temperature between each addition of NaOH Displaying the Results Results should be displayed in a graph and a table like the one shown below: Safety The...

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