To Investigate the Rate Equation of Apparatus Essay Example

To determine the order of reaction of each reactant , I will keep one reactant in excess while changing the concentration of the other . I will place a conical flask on top of a sheet of white paper with a black cross of ink in the centre . The reactants will then be added to the flask ( see table below ). A total of 70 cm of reactants will be used each time (50 cm of Sodium thiosulphate and 20 cm of HCl ) , this will keep the depth of the solution the same each time so that the optical properties of the liquid to not change . Using a burette to make up the desired concentration of sodium thiosulphate diluting with distilled water if required , pipette 50 cm into a conical flask . Pipette 20 cm of HC