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Lab 12 Oxidation of Vitamin C

Lab 12 Oxidation of Vitamin C - Lab 12 Oxidation of Vitamin...

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Lab 12 Oxidation of Vitamin C 2/5/08 Introduction: In this lab we will observe oxidation reactions by titrating KlO 3 with vitamin C. Pre-Lab: Attached Data: Part 1 Data Trial 1 Trial 2 Initial mass of ascorbic acid .4 g .4 g Initial volume in burette .0112 L .0183 L Final volume in the burette .0183 L .0263 L Volume of KlO 3 used .0071 L .008 Moles of KlO 3 7.1*10 -4 moles .0008 moles Moles of C 6 H 6 O 6 2.13*10 -3 moles .0024 moles Experimental mass of C 6 H 6 O 6 calculated from moles of C 6 H 6 O 6 .375 g .423 g Part 2 Data Initial mass of ascorbic acid .4 g Initial volume in burette .0028 L Final volume in the burette .0108 L Volume of KlO 3 used .008 L Moles of KlO 3 .0008 moles Moles of C 6 H 6 O 6 .0024 moles Experimental mass of C 6 H 6 O 6 calculated from moles of C 6 H 6 O 6 .423 g Part 3
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Data Trial 1 Trial 2 Initial mass of Vitamin tablet .614 g .630 g Initial volume in burette .0103 L .0201 L Final volume in the burette .0201 L .0301 L Volume of KlO 3 used .0098 L .01L Moles of KlO 3 .00098 moles .001 moles Moles of C 6 H 6 O 6 .00294 moles .003 moles Experimental mass of C 6 H 6 O 6
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