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> = The concentration of a solution of iron ( II ) sulfate, F e S O 4 , can be determined through a redox
The concentration of a solution of iron II sulfate, can be determined through a redox
titration. A sample of the solution is diluted to with deionized water. A
aliquot is then pipetted into an Erlenmeyer where it is acidified with sulfuric acid and
then titrated with a standard solution of potassium dichromate, The reactants and
products of the reaction unbalanced are:
Question a Write the balanced halfreactions state whether oxidation or reduction half
reaction and the overall balanced redox equation for the reaction between dichromate ion
and ironII ion in acidic solution.
Question b From the data given above and the following data, calculate the molarity of the
original iron sulfate solution. Show your reasoningcalculations
DATA:
Volume of original sample
Volume of diluted solution
Volume of diluted sample titrated
Standard dichromate solution:
Initial burette reading
Final burette reading
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