Part 1. Standardization of the KMN0, Solution Experimental Data Mass of weighing funnel and Na,C,O, 2.5366g 2.2235g Mass of weighing funnel Titrations Titration #1 Titration #2 Volume of Na,C,O, pipetted 25.00mL 22.3mL Initial burette reading 21,1 mL 22.3mL Final burette reading 50.1mL 36.8mL (value provided by TA, on the board) Zone average molarity of KMnO, 0,01366 M Reaction 2 MnO, + 5 C,0, + 16 H* → 2 Mn2+ + 10 CO, + 8 H,O Calculated Values Mass of Na,C,O4 03131g (Give to Lab TA) Molarity of Na,C,O, Titrations Titration #1 Titration #2 28.0mL 1.45 mL Volume of KMNO, (Give to Lab TA) solution Molarity of KMnO, Average molarity of KMNO, % deviation of your molarity of KMNO, from zone average

Part 1. Standardization of the KMN0, Solution Experimental Data Mass of weighing funnel and Na,C,O, 2.5366g 2.2235g Mass of weighing funnel Titrations Titration #1 Titration #2 Volume of Na,C,O, pipetted 25.00mL 22.3mL Initial burette reading 21,1 mL 22.3mL Final burette reading 50.1mL 36.8mL (value provided by TA, on the board) Zone average molarity of KMnO, 0,01366 M Reaction 2 MnO, + 5 C,0, + 16 H* → 2 Mn2+ + 10 CO, + 8 H,O Calculated Values Mass of Na,C,O4 03131g (Give to Lab TA) Molarity of Na,C,O, Titrations Titration #1 Titration #2 28.0mL 1.45 mL Volume of KMNO, (Give to Lab TA) solution Molarity of KMnO, Average molarity of KMNO, % deviation of your molarity of KMNO, from zone average

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter14: Chromatography

Section: Chapter Questions

Problem 9P

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20 aspirin tablets labeled 80mg were dissolved in 100mL of 90% ethanol. A 10mL aliquot was taken and was used for assay. The analyte followed usual process and was treated with 50mL of 0.1000N NaH and was titrated with 35mL 0.1050N H2O4 until the solution achieved completion. Calculate the % content of the total aspirin capsules and the actual label claim
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