Oxidation Reduction Titrations Write Up

Oxidation Reduction Titrations Write Up - Drew Rasmussen...

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Drew Rasmussen Katri Truhler Chemistry 111L – 015 28 October 2010 Oxidation-Reduction Titration Lab Report Form A. Research Questions: a. What is the % oxalate (by mass) in my unknown? b. What is the identity of my unkown? Table 1: Standardization of KMnO4 ` Run 1 Run 2 Run 3 Mass of Na2C2O4 .200g .200g .200g Equivalents of Na2C204 .002985 eq Oxalate .002985 eq Oxalate .002985 eq Oxalate Liters of KMnO4 .01425 L .0140 L .0141 L Normality of KMnO4 solution .210 N .213 N .212 N Average KMnO4 normality .211 avg N .211 avg N .211 avg N Table 2: Percent Oxalate in Unknown # (20) Run 1 Run 2 Run 3 Total mass of unknown .200g .200g .200g Liters of KMnO4 used .0144 L .0141 L .0142 L Equivalents of MnO4 .0030 .0030 .0030
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Mass of oxalate ions in the unknown .134 g .131g .132g % oxalate in the unknown 67.01 % 65.62% 66.08% Average percent oxalate in unknown 66.24 % 66.24% 66.24% ***For calculations: See pages 37, 38, 39 and 40. C. Claims
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This note was uploaded on 01/18/2012 for the course CHEM 112 taught by Professor Lemaster during the Spring '08 term at Boise State.

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Oxidation Reduction Titrations Write Up - Drew Rasmussen...

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