In order to analyze a commercial hydrogen peroxide solution by the procedure described in this experiment, you must first dilute the commercial peroxide solution with distilled water. For example, 10Ml of a commercial peroxide solution measured with a volumetric pipet was diluted to 100ml in a volumetric flask and mixed thoroughly. 25.00ml of diluted peroxide was titrated. Assume that the diluted
peroxide solution had a density of 1.000g/ml-1
Volume of diluted hydrogen peroxide solution, ml 25.00
Molarity of the potassium solution 1.992x10-2
Potassium permanganate solution
initial buret reading 1.17
final buret reading 26.09
Calulate the number of moles of KmnO4
Calculate the number of moles of H2O2
Calcualte the mass of H2O2 in the unknown.
Calculate the percent H2O2 in the diluted peroxide
Calculate the percent of H2O2 in the commercial hydrogen peroxide.