Standardisation of Hydrogen Peroxide Solution

Prepare a solution of hydrogen peroxide by diluting 25.0 cm (100 volume) (measured by a burette) to 250 cm Use a burette to deliver 50.0 cm of the freshly diluted solution to a conical flask, acidify and titrate against standardised 0.02 M permanganate to the first permanent pink. Repeat and calculate, from the average titre, the concentration of hydrogen peroxide in mol dm .  

Follow the same procedure as in Sec.7.6.1 replacing persulphate by hydrogen peroxide, remembering to add ammonium sulphate to the initial solution to maintain die ionic strength constant. After studying the effects of the concentrations of the reactants and temperature on the rate of reaction, investigate the effect of adding different [molybdate]. 

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