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Calculate the number of moles Na2C2O4 used in each of the three samples. Calculate the concentration of potassium permanganate in the standard solution for each of the three titrations you performed. Average the titration results and determine the concentration of Permanganate in the Standard Solution

Calculate the number of moles Na2C2O4 used in each of the three samples. Calculate the concentration of potassium permanganate in the standard solution for each of the three titrations you performed. Average the titration results and determine the concentration of Permanganate in the Standard Solution

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Standardisation of the Permanganate Solution

5 C2O42-(aq) + 2 MnO4-(aq) + 16 H+(aq) → 10 CO2(g) + 2 Mn2+(aq) + 8 H2O                    

  1. Calculate the number of moles Na2C2O4 used in each of the three samples.
  2. Calculate the concentration of potassium permanganate in the standard solution for each of the three titrations you performed.
  3. Average the titration results and determine the concentration of Permanganate in the Standard Solution

    Recorded mass of sodium oxalate (Na2C2O4) in grams (g):

    Sample

    Mass

    M1

    0.1134

    M2

    0.1136

    M3

    0.1124

    M4

    0.1100

    Recorded initial- and final volume of Potassium Permanganate after titration:

    Sample

    Initial Volume in mL (Vi)

     

    Final Volume in mL (Vf)

    Total volume of KMnO4 used in mL.

    (Vf – Vi)

    1

    6.5mL

    23.7mL

    17.2mL

    2

    23.7mL

    40.5mL

    16.8mL

    3

    17.7mL

    34.8mL

    17.1mL

    4

    3.0mL

    19.4mL

    16.4mL

 

#mole C₂02- = 5 mole C₂04 2 mole Mn04 X Vstax Msta
Transcribed Image Text:#mole C₂02- = 5 mole C₂04 2 mole Mn04 X Vstax Msta
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