2 Potassium dichromate is used to titrate a sample

Last updated: 7/3/2023

2 Potassium dichromate is used to titrate a sample containing an unknown percentage of iron The sample is dissolved in H PO H SO mixture to reduce all of the iron to Fe ions The solution is then titrated with 0 01625 M K Cr O producing Fe and Cr ions in acidic solution The titration requires 32 26 mL of K Cr O for the 1 2765 g of the sample a Balance the net ionic equation using the half reaction method b Determine the percent iron in the sample