Put the steps in order to make 100 mL of 2.00×10-4M from 2.00×10-2 M solution of NaSCN. You have these materials to work with • 2.00x10-2 M solution of NaSCN • 5.00 mL pipet • 100.00 ml volumetric flask • various sized beakers : Check the calibration of a 5.00 mL pipettor. If it is not set to deliver within +/- 0.05 g, calibrate the pipettor. * Add solvent to the etch mark, cap and invert 20-30 times. : Pour some of the stock 2.00x10-2 M solution into a beaker. Transfer 1.00 mL of 2.00×10-2 M solution into a clean 100.00 mL volumetric flask using a calibrated 5.00 mL pipettor.

Put the steps in order to make 100 mL of 2.00×10-4M from 2.00×10-2 M solution of NaSCN. You have these materials to work with • 2.00x10-2 M solution of NaSCN • 5.00 mL pipet • 100.00 ml volumetric flask • various sized beakers : Check the calibration of a 5.00 mL pipettor. If it is not set to deliver within +/- 0.05 g, calibrate the pipettor. * Add solvent to the etch mark, cap and invert 20-30 times. : Pour some of the stock 2.00x10-2 M solution into a beaker. Transfer 1.00 mL of 2.00×10-2 M solution into a clean 100.00 mL volumetric flask using a calibrated 5.00 mL pipettor.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter5: Errors In Chemical Analyses

Section: Chapter Questions

Problem 5.10QAP

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ab experiment by adding drops of KMno4 to a solution of distilled water and Iron (II) ammonium sulfate. I measured the iron ammonium sulfate in grams and added the same amounts into two flasks. I then added 25mL of distilled water and mixed. Then I added 5 mL of H2SO4 (sulfuric acid) into the solution. After that, I slowly added drops of KMno4 until the solution turned a pink color (reached end point). I measured the initial and final volume of KMno4. What would be the balanced equation for this reaction? How can I find the moles of KMno4 solution needed to react with all of the 0.100M FeSO4 solution? How do I calculate the molarity of KMno4?
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