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Name: Lab Day and Section: Chemistry 1 1 2 0 Pre - lab Exercise Experiment 1 Exercise Number 1 8 1 The concentration of a
Name:
Lab Day and Section:
Chemistry Prelab Exercise
Experiment
Exercise Number
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:
acidic solution
Question a Write the balanced halfreactions state whether oxidation or reduction halfreaction 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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