Lab report 26.docx - Lab Report 26 Redox Titration of a Metal Oxalate Compound with Permanganate Roberto DeVarona Section A29 TA Alexandra Mandl Partner

Lab report 26.docx - Lab Report 26 Redox Titration of a...

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Lab Report 26: Redox Titration of a Metal Oxalate Compound with Permanganate Roberto DeVarona Section: A29, TA: Alexandra Mandl Partner: Amenda Kang Date: 4/13/17 Honor Pledge: I did not copy any portion of this work from the work of other students, old lab reports, or unreferenced materials. I understand that such activity is a violation of the Georgia Tech Honor Code.
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Introduction: Titration is a technique used to find an unknown molarity or mass using a previously known molarity. Typically, the titrant (substance being added) is added from the buret in increments to a known volume of the analyte (the unknown substance). Usually, this is conducted between acids and bases in which the person doing the titration attempts to neutralize the solution. In this experiment, a redox titration was performed, in which the reaction taking place is a redox reaction. The reaction in which this titration was based off was: 2 + ¿ ( aq ) ¿ ( aq ) →CO 2 ( g ) + M n ¿ 2 ¿ ( aq ) + MnO 4 ¿ C 2 O 4 ¿ In this experiment, a metal oxalate is titrated by permanganate, an extremely strong oxidizer. First, 3 standardization titrations will be performed with sodium oxalate, and then 2 titrations will be performed with Iron Oxalate. Through this, the mass percent of oxalate to iron in the compound itself will be measured. Theoretically, the mass percent is 61.2%, so the mass percent should be similar to this. Also, a titration for an analyte with more mass should need more titrant to fully complete the reaction. This experiment is important because it
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