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You want to determine Fe in a solution via manganometric titration. To determine the exact concentration of the KMnO4 solution, you titrate a sodium oxalate solution in a strongly acidic environment. Thereby oxalate will be oxidized to CO2 by KMnO. For this purpose you dissolve exactly 185.4 mg sodium oxalate (M = 134.0 g/mol) and titrate with KMnO4 solution. Your consumption equals 22.8 ml. Subsequently you use the permanganate solution to titrate 25 ml of a sample containing Fe² (M = 55.8 g/mol) whereby Fe2+ will be oxidized to Fe by MnO in a strongly acidic environment. For this titration you need 3.9 ml of the KMnO, solution. Please give all relevant reaction equations (with correct stoichiometry). Calculate the exact concentration of the permanganate solution. How much Fe (in g) was in 250 ml of your sample solution? If you do this titration in a solution containing HCI, you have to add the Reinhard/Zimmermann solution. What are the ingredients, why do you need to add it and what is the effect of this solution?

You want to determine Fe in a solution via manganometric titration. To determine the exact concentration of the KMnO4 solution, you titrate a sodium oxalate solution in a strongly acidic environment. Thereby oxalate will be oxidized to CO2 by KMnO. For this purpose you dissolve exactly 185.4 mg sodium oxalate (M = 134.0 g/mol) and titrate with KMnO4 solution. Your consumption equals 22.8 ml. Subsequently you use the permanganate solution to titrate 25 ml of a sample containing Fe² (M = 55.8 g/mol) whereby Fe2+ will be oxidized to Fe by MnO in a strongly acidic environment. For this titration you need 3.9 ml of the KMnO, solution. Please give all relevant reaction equations (with correct stoichiometry). Calculate the exact concentration of the permanganate solution. How much Fe (in g) was in 250 ml of your sample solution? If you do this titration in a solution containing HCI, you have to add the Reinhard/Zimmermann solution. What are the ingredients, why do you need to add it and what is the effect of this solution?

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter17: Electrochemistry
Section: Chapter Questions
Problem 106CP
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You want to determine Fe in a solution via manganometric titration. To determine the exact concentration of the KMnO4 solution, you titrate a sodium oxalate solution in a strongly acidic environment. Thereby oxalate will be oxidized to CO2 by KMnO. For this purpose you dissolve exactly 185.4 mg sodium oxalate (M = 134.0 g/mol) and titrate with KMnO4 solution. Your consumption equals 22.8 ml. Subsequently you use the permanganate solution to titrate 25 ml of a sample containing Fe² (M = 55.8 g/mol) whereby Fe2+ will be oxidized to Fe by MnO in a strongly acidic environment. For this titration you need 3.9 ml of the KMnO, solution. Please give all relevant reaction equations (with correct stoichiometry). Calculate the exact concentration of the permanganate solution. How much Fe (in g) was in 250 ml of your sample solution? If you do this titration in a solution containing HCI, you have to add the Reinhard/Zimmermann solution. What are the ingredients, why do you need to add it and what is the effect of this solution?
Transcribed Image Text:You want to determine Fe in a solution via manganometric titration. To determine the exact concentration of the KMnO4 solution, you titrate a sodium oxalate solution in a strongly acidic environment. Thereby oxalate will be oxidized to CO2 by KMnO. For this purpose you dissolve exactly 185.4 mg sodium oxalate (M = 134.0 g/mol) and titrate with KMnO4 solution. Your consumption equals 22.8 ml. Subsequently you use the permanganate solution to titrate 25 ml of a sample containing Fe² (M = 55.8 g/mol) whereby Fe2+ will be oxidized to Fe by MnO in a strongly acidic environment. For this titration you need 3.9 ml of the KMnO, solution. Please give all relevant reaction equations (with correct stoichiometry). Calculate the exact concentration of the permanganate solution. How much Fe (in g) was in 250 ml of your sample solution? If you do this titration in a solution containing HCI, you have to add the Reinhard/Zimmermann solution. What are the ingredients, why do you need to add it and what is the effect of this solution?
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