Why must I dilute my H2O2 in a redox titration?
Your unknown is something you want to use wisely. Often, the solution you have been given is just too concentrated for the standard solution. If you were to just take the straight solution and titrate it with the standard it would require more that one buret full of the standard. This would require you to fill the buret multiple times to complete the titration. This type of technique would lead to much larger errors. You only want to use one buret full of standard reagent to obtain the greatest accuracy in your titration procedure. What you need to do is take an accurately measured portion of the unknown solution and dilute it using a volumetric flask. This type of flask is calibrated to a high degree of precision. You would take a smal portion of the unknown using another finely calibrated device called a pipet which will deliver small to medium volumes of liquid with a high degree of precision. After placing the small amount of sample into the volumetric flask you will dilute it with
